amc13::Packet Class Reference

#include <AMCSpec.h>

Public Member Functions
void	add (unsigned int board, const std::vector< uint64_t > &load)
unsigned int	blocks () const
	Packet ()
bool	parse (const uint64_t *, unsigned int)
std::vector< amc::Packet >	payload () const
unsigned int	size () const
bool	write (const edm::Event &ev, unsigned char *ptr, unsigned int size) const

Private Attributes
Header	header_
std::vector< amc::Packet >	payload_

Detailed Description

Definition at line 130 of file AMCSpec.h.

Constructor & Destructor Documentation

amc13::Packet::Packet ( )

inline

Definition at line 132 of file AMCSpec.h.

{};

Member Function Documentation

void Packet::add	(	unsigned int	board,
		const std::vector< uint64_t > &	load
	)

Definition at line 133 of file AMCSpec.cc.

References svgfig::load(), and payload_.

Referenced by counter.Counter::register().

   {
      edm::LogInfo("AMC") << "Adding board " << board << " with payload size " << load.size();
      // Start by indexing with 1
      payload_.push_back(amc::Packet(payload_.size() + 1, board, load));
   }

unsigned int Packet::blocks

(

)

const

Definition at line 258 of file AMCSpec.cc.

References amc, bookConverter::max, and payload_.

Referenced by size(), and write().

   {
      unsigned int maxblocks = 0;

      for (const auto& amc: payload_)
         maxblocks = std::max(maxblocks, amc.blocks());

      return maxblocks;
   }

bool Packet::parse	(	const uint64_t *	data,
		unsigned int	size
	)

Definition at line 141 of file AMCSpec.cc.

References amc, b, DDVectorGetter::check(), cms::CRC32Calculator::checksum(), data, amc13::Trailer::getBlock(), amc13::Trailer::getCRC(), amc13::Header::getFormatVersion(), amc13::Header::getNumberOfAMCs(), amc13::Header::getOrbitNumber(), header_, getRunAppsInfo::headers, i, bookConverter::max, payload_, AlCaHLTBitMon_QueryRunRegistry::string, edmStreamStallGrapher::t, and amc13::Header::valid().

   {
      // Need at least a header and trailer
      // TODO check if this can be removed
      if (size < 2) {
         edm::LogError("AMC") << "AMC13 packet size too small";
         return false;
      }

      auto block_start = data;
      header_ = Header(data++);

      if (!header_.valid()) {
         edm::LogError("AMC")
            << "Invalid header for AMC13 packet: "
            << "format version " << header_.getFormatVersion()
            << ", " << header_.getNumberOfAMCs()
            << " AMC packets, orbit " << header_.getOrbitNumber();
         return false;
      }

      if (size < 2 + header_.getNumberOfAMCs())
         return false;

      // Initial filling of AMC payloads.  First, get the headers.  The
      // first payload follows afterwards.
      for (unsigned int i = 0; i < header_.getNumberOfAMCs(); ++i) {
         payload_.push_back(amc::Packet(data++));
      }

      unsigned int tot_size = 0; // total payload size
      unsigned int tot_nblocks = 0; // total blocks of payload
      unsigned int maxblocks = 0; // counting the # of amc13 header/trailers (1 ea per block)

      for (const auto& amc: payload_) {
         tot_size += amc.header().getSize();
         tot_nblocks += amc.header().getBlocks();
         maxblocks = std::max(maxblocks, amc.header().getBlocks());
      }

      unsigned int words = tot_size + // payload size
                           tot_nblocks + // AMC headers
                           2 * maxblocks; // AMC13 headers

      if (size < words) {
         edm::LogError("L1T")
            << "Encountered AMC 13 packet with "
            << size << " words, "
            << "but expected "
            << words << " words: "
            << tot_size << " payload words, "
            << tot_nblocks << " AMC header words, and 2 AMC 13 header words.";
         return false;
      }

      // Read in the first AMC block and append the payload to the
      // corresponding AMC packet.
      for (auto& amc: payload_) {
         amc.addPayload(data, amc.header().getBlockSize());
         data += amc.header().getBlockSize();
      }
      auto block_end = data;

      Trailer t(data++);

      std::string check(reinterpret_cast<const char*>(block_start), reinterpret_cast<const char*>(block_end));
      cms::CRC32Calculator crc(check);

      if (crc.checksum() != t.getCRC()) {
         edm::LogWarning("L1T") << "Mismatch in checksums for block 0";
      }

      if (t.getBlock() != 0 ) {
         edm::LogWarning("L1T")
            << "Block trailer mismatch: "
            << "expected block 0, but trailer is for block "
            << t.getBlock();
      }

      // Read in remaining AMC blocks
      for (unsigned int b = 1; b < maxblocks; ++b) {
         block_start = data;

         Header block_h(data++);
         std::vector<amc::Header> headers;

         for (unsigned int i = 0; i < block_h.getNumberOfAMCs(); ++i)
            headers.push_back(amc::Header(data++));

         for (const auto& amc: headers) {
            payload_[amc.getAMCNumber() - 1].addPayload(data, amc.getBlockSize());
            data += amc.getBlockSize();
         }

         block_end = data;

         t = Trailer(data++);

         check = std::string(reinterpret_cast<const char*>(block_start), reinterpret_cast<const char*>(block_end));
         crc = cms::CRC32Calculator(check);

         if (crc.checksum() != t.getCRC()) {
            edm::LogWarning("L1T") << "Mismatch in checksums for block " << b;
         }

         if (t.getBlock() != 0 ) {
            edm::LogWarning("L1T")
               << "Block trailer mismatch: "
               << "expected block " << b
               << ", but trailer is for block " << t.getBlock();
         }
      }

      return true;
   }

std::vector<amc::Packet> amc13::Packet::payload ( ) const

inline

Definition at line 141 of file AMCSpec.h.

References payload_.

{ return payload_; };

unsigned int Packet::size

(

void

)

const

Definition at line 269 of file AMCSpec.cc.

References amc, blocks(), bookConverter::max, and payload_.

Referenced by write().

   {
      unsigned int words = 0;
      unsigned int blocks = 0;
      unsigned int maxblocks = 0;

      for (const auto& amc: payload_) {
         words += amc.size();
         blocks += amc.blocks();
         maxblocks = std::max(maxblocks, amc.blocks());
      }

      // Size is total amount of words + # of blocks for AMC headers + # of
      // maxblocks for AMC13 block header, trailer
      return words + blocks + maxblocks * 2;
   }

bool Packet::write	(	const edm::Event &	ev,
		unsigned char *	ptr,
		unsigned int	size
	)		const

Definition at line 287 of file AMCSpec.cc.

References amc, b, blocks(), edm::EventBase::bunchCrossing(), cms::CRC32Calculator::checksum(), data, edm::EventID::event(), h, edm::EventBase::id(), edm::EventBase::orbitNumber(), payload_, size(), and AlCaHLTBitMon_QueryRunRegistry::string.

Referenced by pkg.AbstractPkg::generate().

   {
      if (size < this->size() * 8)
         return false;

      if (size % 8 != 0)
         return false;

      uint64_t * data = reinterpret_cast<uint64_t*>(ptr);

      for (unsigned int b = 0; b < blocks(); ++b) {
         uint64_t * block_start = data;

         std::vector<uint64_t> block_headers;
         std::vector<uint64_t> block_load;
         for (const auto& amc: payload_) {
            edm::LogInfo("AMC")
               << "Considering block " << b
               << " for payload " << amc.header().getBoardID()
               << " with size " << amc.size()
               << " and " << amc.blocks() << " blocks";
            if (amc.blocks() < b + 1)
               continue;

            block_headers.push_back(amc.header(b));
            auto words = amc.block(b);
            block_load.insert(block_load.end(), words.begin(), words.end());
         }

         if (b == 0) {
            amc13::Header h(block_headers.size(), ev.orbitNumber());
            edm::LogInfo("AMC")
               << "Writing header for AMC13 packet: "
               << "format version " << h.getFormatVersion()
               << ", " << h.getNumberOfAMCs()
               << " AMC packets, orbit " << h.getOrbitNumber();
         }

         *(data++) = amc13::Header(block_headers.size(), ev.orbitNumber()).raw();

         block_headers.insert(block_headers.end(), block_load.begin(), block_load.end());
         for (const auto& word: block_headers)
            *(data++) = word;

         std::string dstring(reinterpret_cast<char*>(block_start), reinterpret_cast<char*>(data));
         cms::CRC32Calculator crc(dstring);
         *(data++) = Trailer(crc.checksum(), b, ev.id().event(), ev.bunchCrossing()).raw();
      }

      return true;
   }

Member Data Documentation

Header amc13::Packet::header_

private

Definition at line 141 of file AMCSpec.h.

Referenced by parse().

std::vector<amc::Packet> amc13::Packet::payload_

private

Definition at line 145 of file AMCSpec.h.

Referenced by add(), blocks(), parse(), payload(), size(), and write().