extensions/openpower-pels/src.hpp - openbmc/phosphor-logging - Gitiles

 #pragma once

 #include "additional_data.hpp"
 #include "ascii_string.hpp"
 #include "callouts.hpp"
 #include "pel_types.hpp"
 #include "registry.hpp"
 #include "section.hpp"
 #include "stream.hpp"

 namespace openpower
 {
 namespace pels
 {

 constexpr uint8_t srcSectionVersion = 0x01;
 constexpr uint8_t srcSectionSubtype = 0x01;
 constexpr size_t numSRCHexDataWords = 8;
 constexpr uint8_t srcVersion = 0x02;
 constexpr uint8_t bmcSRCFormat = 0x55;
 constexpr uint8_t primaryBMCPosition = 0x10;
 constexpr size_t baseSRCSize = 72;

 /**
  * @class SRC
  *
  * SRC stands for System Reference Code.
  *
  * This class represents the SRC sections in the PEL, of which there are 2:
  * primary SRC and secondary SRC.  These are the same structurally, the
  * difference is that the primary SRC must be the 3rd section in the PEL if
  * present and there is only one of them, and the secondary SRC sections are
  * optional and there can be more than one (by definition, for there to be a
  * secondary SRC, a primary SRC must also exist).
  *
  * This section consists of:
  * - An 8B header (Has the version, flags, hexdata word count, and size fields)
  * - 8 4B words of hex data
  * - An ASCII character string
  * - An optional subsection for Callouts
  */
 class SRC : public Section
 {
   public:
     enum HeaderFlags
     {
         additionalSections = 0x01,
         powerFaultEvent = 0x02
     };

     SRC() = delete;
     ~SRC() = default;
     SRC(const SRC&) = delete;
     SRC& operator=(const SRC&) = delete;
     SRC(SRC&&) = delete;
     SRC& operator=(SRC&&) = delete;

     /**
      * @brief Constructor
      *
      * Fills in this class's data fields from the stream.
      *
      * @param[in] pel - the PEL data stream
      */
     explicit SRC(Stream& pel);

     /**
      * @brief Constructor
      *
      * Creates the section with data from the PEL message registry entry for
      * this error, along with the AdditionalData property contents from the
      * corresponding event log.
      *
      * @param[in] regEntry - The message registry entry for this event log
      * @param[in] additionalData - The AdditionalData properties in this event
      *                             log
      */
     SRC(const message::Entry& regEntry, const AdditionalData& additionalData);

     /**
      * @brief Flatten the section into the stream
      *
      * @param[in] stream - The stream to write to
      */
     void flatten(Stream& stream) const override;

     /**
      * @brief Returns the SRC version, which is a different field
      *        than the version byte in the section header.
      *
      * @return uint8_t
      */
     uint8_t version() const
     {
         return _version;
     }

     /**
      * @brief Returns the flags byte
      *
      * @return uint8_t
      */
     uint8_t flags() const
     {
         return _flags;
     }

     /**
      * @brief Returns the hex data word count.
      *
      * Even though there always 8 words, this returns 9 due to previous
      * SRC version formats.
      *
      * @return uint8_t
      */
     uint8_t hexWordCount() const
     {
         return _wordCount;
     }

     /**
      * @brief Returns the size of the SRC section, not including the header.
      *
      * @return uint16_t
      */
     uint16_t size() const
     {
         return _size;
     }

     /**
      * @brief Returns the 8 hex data words.
      *
      * @return const std::array<uint32_t, numSRCHexDataWords>&
      */
     const std::array<uint32_t, numSRCHexDataWords>& hexwordData() const
     {
         return _hexData;
     }

     /**
      * @brief Returns the ASCII string
      *
      * @return std::string
      */
     std::string asciiString() const
     {
         return _asciiString->get();
     }

     /**
      * @brief Returns the callouts subsection
      *
      * If no callouts, this unique_ptr will be empty
      *
      * @return  const std::unique_ptr<src::Callouts>&
      */
     const std::unique_ptr<src::Callouts>& callouts() const
     {
         return _callouts;
     }

     /**
      * @brief Returns the size of this section when flattened into a PEL
      *
      * @return size_t - the size of the section
      */
     size_t flattenedSize() const
     {
         return _header.size;
     }

     /**
      * @brief Says if this SRC has additional subsections in it
      *
      * Note: The callouts section is the only possible subsection.
      *
      * @return bool
      */
     inline bool hasAdditionalSections() const
     {
         return _flags & additionalSections;
     }

     /**
      * @brief Indicates if this event log is for a power fault.
      *
      * This comes from a field in the message registry for BMC
      * generated PELs.
      *
      * @return bool
      */
     inline bool isPowerFaultEvent() const
     {
         return _flags & powerFaultEvent;
     }

   private:
     /**
      * @brief Fills in the user defined hex words from the
      *        AdditionalData fields.
      *
      * When creating this section from a message registry entry,
      * that entry has a field that says which AdditionalData property
      * fields to use to fill in the user defined hex data words 6-9
      * (which correspond to hexData words 4-7).
      *
      * For example, given that AdditionalData is a map of string keys
      * to string values, find the AdditionalData value for AdditionalData
      * key X, convert it to a uint32_t, and save it in user data word Y.
      *
      * @param[in] regEntry - The message registry entry for the error
      * @param[in] additionalData - The AdditionalData map
      */
     void setUserDefinedHexWords(const message::Entry& regEntry,
                                 const AdditionalData& additionalData);
     /**
      * @brief Fills in the object from the stream data
      *
      * @param[in] stream - The stream to read from
      */
     void unflatten(Stream& stream);

     /**
      * @brief Get the _hexData[] index to use based on the corresponding
      *        SRC word number.
      *
      * Converts the specification nomenclature to this data structure.
      * See the _hexData documentation below for more information.
      *
      * @param[in] wordNum - The SRC word number, as defined by the spec.
      *
      * @return size_t The corresponding index into _hexData.
      */
     inline size_t getWordIndexFromWordNum(size_t wordNum) const
     {
         assert(wordNum >= 2 && wordNum <= 9);
         return wordNum - 2;
     }

     /**
      * @brief Says if the word number is in the range of user defined words.
      *
      * This is only used for BMC generated SRCs, where words 6 - 9 are the
      * user defined ones, meaning that setUserDefinedHexWords() will be
      * used to fill them in based on the contents of the OpenBMC event log.
      *
      * @param[in] wordNum - The SRC word number, as defined by the spec.
      *
      * @return bool - If this word number can be filled in by the creator.
      */
     inline bool isUserDefinedWord(size_t wordNum) const
     {
         return (wordNum >= 6) && (wordNum <= 9);
     }

     /**
      * @brief Sets the SRC format byte in the hex word data.
      */
     inline void setBMCFormat()
     {
         _hexData[0] |= bmcSRCFormat;
     }

     /**
      * @brief Sets the hex word field that specifies which BMC
      *        (primary vs backup) created the error.
      *
      * Can be hardcoded until there are systems with redundant BMCs.
      */
     inline void setBMCPosition()
     {
         _hexData[1] |= primaryBMCPosition;
     }

     /**
      * @brief Validates the section contents
      *
      * Updates _valid (in Section) with the results.
      */
     void validate() override;

     /**
      * @brief The SRC version field
      */
     uint8_t _version;

     /**
      * @brief The SRC flags field
      */
     uint8_t _flags;

     /**
      * @brief A byte of reserved data after the flags field
      */
     uint8_t _reserved1B;

     /**
      * @brief The hex data word count.
      *
      * To be compatible with previous versions of SRCs, this is
      * number of hex words (8) + 1 = 9.
      */
     uint8_t _wordCount;

     /**
      * @brief Two bytes of reserved data after the hex word count
      */
     uint16_t _reserved2B;

     /**
      * @brief The total size of the SRC section, not including the section
      *        header.
      */
     uint16_t _size;

     /**
      * @brief The SRC 'hex words'.
      *
      * In the spec these are referred to as SRC words 2 - 9 as words 0 and 1
      * are filled by the 8 bytes of fields from above.
      */
     std::array<uint32_t, numSRCHexDataWords> _hexData;

     /**
      * @brief The 32 byte ASCII character string of the SRC
      *
      * It is padded with spaces to fill the 32 bytes.
      * An example is:
      * "BD8D1234                        "
      *
      * That first word is what is commonly referred to as the refcode, and
      * sometimes also called an SRC.
      */
     std::unique_ptr<src::AsciiString> _asciiString;

     /**
      * @brief The callouts subsection.
      *
      * Optional and only created if there are callouts.
      */
     std::unique_ptr<src::Callouts> _callouts;
 };

 } // namespace pels
 } // namespace openpower
	#pragma once

	#include "additional_data.hpp"
	#include "ascii_string.hpp"
	#include "callouts.hpp"
	#include "pel_types.hpp"
	#include "registry.hpp"
	#include "section.hpp"
	#include "stream.hpp"

	namespace openpower
	{
	namespace pels
	{

	constexpr uint8_t srcSectionVersion = 0x01;
	constexpr uint8_t srcSectionSubtype = 0x01;
	constexpr size_t numSRCHexDataWords = 8;
	constexpr uint8_t srcVersion = 0x02;
	constexpr uint8_t bmcSRCFormat = 0x55;
	constexpr uint8_t primaryBMCPosition = 0x10;
	constexpr size_t baseSRCSize = 72;

	/**
	* @class SRC
	*
	* SRC stands for System Reference Code.
	*
	* This class represents the SRC sections in the PEL, of which there are 2:
	* primary SRC and secondary SRC. These are the same structurally, the
	* difference is that the primary SRC must be the 3rd section in the PEL if
	* present and there is only one of them, and the secondary SRC sections are
	* optional and there can be more than one (by definition, for there to be a
	* secondary SRC, a primary SRC must also exist).
	*
	* This section consists of:
	* - An 8B header (Has the version, flags, hexdata word count, and size fields)
	* - 8 4B words of hex data
	* - An ASCII character string
	* - An optional subsection for Callouts
	*/
	class SRC : public Section
	{
	public:
	enum HeaderFlags
	{
	additionalSections = 0x01,
	powerFaultEvent = 0x02
	};

	SRC() = delete;
	~SRC() = default;
	SRC(const SRC&) = delete;
	SRC& operator=(const SRC&) = delete;
	SRC(SRC&&) = delete;
	SRC& operator=(SRC&&) = delete;

	/**
	* @brief Constructor
	*
	* Fills in this class's data fields from the stream.
	*
	* @param[in] pel - the PEL data stream
	*/
	explicit SRC(Stream& pel);

	/**
	* @brief Constructor
	*
	* Creates the section with data from the PEL message registry entry for
	* this error, along with the AdditionalData property contents from the
	* corresponding event log.
	*
	* @param[in] regEntry - The message registry entry for this event log
	* @param[in] additionalData - The AdditionalData properties in this event
	* log
	*/
	SRC(const message::Entry& regEntry, const AdditionalData& additionalData);

	/**
	* @brief Flatten the section into the stream
	*
	* @param[in] stream - The stream to write to
	*/
	void flatten(Stream& stream) const override;

	/**
	* @brief Returns the SRC version, which is a different field
	* than the version byte in the section header.
	*
	* @return uint8_t
	*/
	uint8_t version() const
	{
	return _version;
	}

	/**
	* @brief Returns the flags byte
	*
	* @return uint8_t
	*/
	uint8_t flags() const
	{
	return _flags;
	}

	/**
	* @brief Returns the hex data word count.
	*
	* Even though there always 8 words, this returns 9 due to previous
	* SRC version formats.
	*
	* @return uint8_t
	*/
	uint8_t hexWordCount() const
	{
	return _wordCount;
	}

	/**
	* @brief Returns the size of the SRC section, not including the header.
	*
	* @return uint16_t
	*/
	uint16_t size() const
	{
	return _size;
	}

	/**
	* @brief Returns the 8 hex data words.
	*
	* @return const std::array<uint32_t, numSRCHexDataWords>&
	*/
	const std::array<uint32_t, numSRCHexDataWords>& hexwordData() const
	{
	return _hexData;
	}

	/**
	* @brief Returns the ASCII string
	*
	* @return std::string
	*/
	std::string asciiString() const
	{
	return _asciiString->get();
	}

	/**
	* @brief Returns the callouts subsection
	*
	* If no callouts, this unique_ptr will be empty
	*
	* @return const std::unique_ptr<src::Callouts>&
	*/
	const std::unique_ptr<src::Callouts>& callouts() const
	{
	return _callouts;
	}

	/**
	* @brief Returns the size of this section when flattened into a PEL
	*
	* @return size_t - the size of the section
	*/
	size_t flattenedSize() const
	{
	return _header.size;
	}

	/**
	* @brief Says if this SRC has additional subsections in it
	*
	* Note: The callouts section is the only possible subsection.
	*
	* @return bool
	*/
	inline bool hasAdditionalSections() const
	{
	return _flags & additionalSections;
	}

	/**
	* @brief Indicates if this event log is for a power fault.
	*
	* This comes from a field in the message registry for BMC
	* generated PELs.
	*
	* @return bool
	*/
	inline bool isPowerFaultEvent() const
	{
	return _flags & powerFaultEvent;
	}

	private:
	/**
	* @brief Fills in the user defined hex words from the
	* AdditionalData fields.
	*
	* When creating this section from a message registry entry,
	* that entry has a field that says which AdditionalData property
	* fields to use to fill in the user defined hex data words 6-9
	* (which correspond to hexData words 4-7).
	*
	* For example, given that AdditionalData is a map of string keys
	* to string values, find the AdditionalData value for AdditionalData
	* key X, convert it to a uint32_t, and save it in user data word Y.
	*
	* @param[in] regEntry - The message registry entry for the error
	* @param[in] additionalData - The AdditionalData map
	*/
	void setUserDefinedHexWords(const message::Entry& regEntry,
	const AdditionalData& additionalData);
	/**
	* @brief Fills in the object from the stream data
	*
	* @param[in] stream - The stream to read from
	*/
	void unflatten(Stream& stream);

	/**
	* @brief Get the _hexData[] index to use based on the corresponding
	* SRC word number.
	*
	* Converts the specification nomenclature to this data structure.
	* See the _hexData documentation below for more information.
	*
	* @param[in] wordNum - The SRC word number, as defined by the spec.
	*
	* @return size_t The corresponding index into _hexData.
	*/
	inline size_t getWordIndexFromWordNum(size_t wordNum) const
	{
	assert(wordNum >= 2 && wordNum <= 9);
	return wordNum - 2;
	}

	/**
	* @brief Says if the word number is in the range of user defined words.
	*
	* This is only used for BMC generated SRCs, where words 6 - 9 are the
	* user defined ones, meaning that setUserDefinedHexWords() will be
	* used to fill them in based on the contents of the OpenBMC event log.
	*
	* @param[in] wordNum - The SRC word number, as defined by the spec.
	*
	* @return bool - If this word number can be filled in by the creator.
	*/
	inline bool isUserDefinedWord(size_t wordNum) const
	{
	return (wordNum >= 6) && (wordNum <= 9);
	}

	/**
	* @brief Sets the SRC format byte in the hex word data.
	*/
	inline void setBMCFormat()
	{
	_hexData[0] \|= bmcSRCFormat;
	}

	/**
	* @brief Sets the hex word field that specifies which BMC
	* (primary vs backup) created the error.
	*
	* Can be hardcoded until there are systems with redundant BMCs.
	*/
	inline void setBMCPosition()
	{
	_hexData[1] \|= primaryBMCPosition;
	}

	/**
	* @brief Validates the section contents
	*
	* Updates _valid (in Section) with the results.
	*/
	void validate() override;

	/**
	* @brief The SRC version field
	*/
	uint8_t _version;

	/**
	* @brief The SRC flags field
	*/
	uint8_t _flags;

	/**
	* @brief A byte of reserved data after the flags field
	*/
	uint8_t _reserved1B;

	/**
	* @brief The hex data word count.
	*
	* To be compatible with previous versions of SRCs, this is
	* number of hex words (8) + 1 = 9.
	*/
	uint8_t _wordCount;

	/**
	* @brief Two bytes of reserved data after the hex word count
	*/
	uint16_t _reserved2B;

	/**
	* @brief The total size of the SRC section, not including the section
	* header.
	*/
	uint16_t _size;

	/**
	* @brief The SRC 'hex words'.
	*
	* In the spec these are referred to as SRC words 2 - 9 as words 0 and 1
	* are filled by the 8 bytes of fields from above.
	*/
	std::array<uint32_t, numSRCHexDataWords> _hexData;

	/**
	* @brief The 32 byte ASCII character string of the SRC
	*
	* It is padded with spaces to fill the 32 bytes.
	* An example is:
	* "BD8D1234 "
	*
	* That first word is what is commonly referred to as the refcode, and
	* sometimes also called an SRC.
	*/
	std::unique_ptr<src::AsciiString> _asciiString;

	/**
	* @brief The callouts subsection.
	*
	* Optional and only created if there are callouts.
	*/
	std::unique_ptr<src::Callouts> _callouts;
	};

	} // namespace pels
	} // namespace openpower