fragheader.hpp File Reference

Fragment headers. More...

#include <cassert>
#include <vector>
#include <span>

Include dependency graph for fragheader.hpp:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Classes
class	itk::fragment::FelixPacket
	Felix Packet structure. More...
struct	itk::fragment::FelixID
struct	itk::fragment::FLX::Header
struct	itk::fragment::SWROD::Header
struct	itk::fragment::ROD::Header
struct	itk::fragment::ROD::Trailer
struct	itk::fragment::ROB::BaseHeader
struct	itk::fragment::ROB::Header< n >

Typedefs
using	itk::fragment::uint = uint32_t

Enumerations
enum	itk::fragment::ROB::checksum_t { itk::fragment::ROB::CHECKSUM_NONE = 0x0 , itk::fragment::ROB::CHECKSUM_CRC16 = 0x1 , itk::fragment::ROB::CHECKSUM_ADLER32 = 0x2 }
	Checksum type. More...

Functions
struct itk::fragment::FelixID	itk::fragment::__attribute__ ((packed, aligned(4)))
struct itk::fragment::FLX::Header	itk::fragment::FLX::__attribute__ ((packed, aligned(4)))
struct itk::fragment::SWROD::Header	itk::fragment::SWROD::__attribute__ ((packed, aligned(4)))
struct itk::fragment::ROD::Header	itk::fragment::ROD::__attribute__ ((packed, aligned(4)))
template<int n>
struct itk::fragment::ROB::Header	itk::fragment::ROB::__attribute__ ((packed, aligned(4)))

Variables
union {
uint64_t   felix_id
struct {
uint   stream_id: 8
union {
struct {
uint   transport_id: 14
uint   link_id: 14
}
struct {
uint   proto_id: 7
uint   direction: 1
uint   elink_id: 19
uint   virtlink: 1
}
}
uint   connector_id: 16
uint   detector_id: 8
uint   version_id: 4
}
};
uint32_t	fragment_size = 0
	header marker More...
uint8_t	padding_bytes
	size of fragment in words
uint8_t	felix_status = 0
	bytes added to align to word More...
uint8_t	format_type
	Virtual[1].ElinkID[19].
uint8_t	swrod_status = 0
	format type More...
uint32_t	timestamp = 0
	SWROD status. More...
uint16_t	size = 0
constexpr uint32_t	itk::fragment::SWROD::HEADER_SIZE = sizeof(Header)/4
	SWROD header size.
constexpr uint32_t	itk::fragment::ROD::HEADER_MARKER = 0xee1234ee
	ROD Header marker.
constexpr uint32_t	itk::fragment::ROD::HEADER_SIZE = 9
	ROD Header fragment size.
uint32_t	header_marker = HEADER_MARKER
uint32_t	header_size = HEADER_SIZE
	header marker, for ROD = 0xee1234ee More...
uint32_t	format_version
	header size in words
uint32_t	source_id = 0
	format version major[16].minor[16]
uint32_t	run_number
	origin of the fragment : optional[8].sub-detector[8].ROL[16]
uint32_t	ext_l1id
	run number
uint32_t	bcid
	extended Level1 ID : ecr[8].l1id[24]
uint32_t	trigger_type
	bunch crossing ID : bcid[12]
uint32_t	event_type
	Leve1 ID trigger type.
uint32_t	status_size = 0
	origin of the fragment [sub-detector id, module id]
uint32_t	data_size = 0
	number of status elements
uint32_t	status_pos = 1
	number of data elements
enum itk::fragment::ROB::checksum_t	itk::fragment::ROB::__attribute__
constexpr uint32_t	itk::fragment::ROB::HEADER_MARKER = 0xdd1234dd
	ROB Header marker.
uint32_t	status [n]
	number of status elements
uint32_t	checksum_type = 0
	status elements
uint32_t	felix_device = 0xF
	Timestamp for ROB in bunch crossing.

Detailed Description

Fragment headers.

Author

Orion

Enumeration Type Documentation

checksum_t

enum itk::fragment::ROB::checksum_t

Checksum type.

Enumerator
CHECKSUM_NONE	No checksum.
CHECKSUM_CRC16	CRC-16/CCITT checksum.
CHECKSUM_ADLER32	Adler-32 checksum.

Variable Documentation

felix_status

uint8_t felix_status = 0

bytes added to align to word

size of fragment including header in 4 byte words

fragment_size

uint32_t fragment_size = 0

header marker

32 24 16 8 0 ╭──────╮╭──────╮╭──────╮╭──────╮ [status][][...fragment_size....] [.type.][.... packet_size......] ..link...][.transport..][stream] [........timestamp.........][... ╰──────╯╰──────╯╰──────╯╰──────╯

header_size

uint32_t header_size = HEADER_SIZE

header marker, for ROD = 0xee1234ee

size of fragment in words

size

uint16_t size = 0

32 24 16 8 0 ╭──────╮╭──────╮╭──────╮╭──────╮ [swrod.][status][.....size.....] [............link_id...........] ╰──────╯╰──────╯╰──────╯╰──────╯

swrod_status

uint8_t swrod_status = 0

format type

felix status

timestamp

uint64_t timestamp = 0

SWROD status.

check sum type, after status elements

Detector Specific Header ╭──────╮╭──────╮╭──────╮╭──────╮ ...........timestamp...........] [..........timestamp............ -—[V.][.Det..][..Connector...] ╰──────╯╰──────╯╰──────╯╰──────╯