#include <NetworkInterface.hh>

Inheritance diagram for NetworkInterface:

Public Types
typedef GarnetNetworkInterfaceParams	Params

Public Types inherited from ClockedObject
typedef ClockedObjectParams	Params
	Parameters of ClockedObject. More...

Public Types inherited from SimObject
typedef SimObjectParams	Params

Public Member Functions
	NetworkInterface (const Params *p)

	~NetworkInterface ()=default

void	init ()
	init() is called after all C++ SimObjects have been created and all ports are connected. More...

void	addInPort (NetworkLink in_link, CreditLink credit_link)

void	addOutPort (NetworkLink out_link, CreditLink credit_link, SwitchID router_id)

void	dequeueCallback ()

void	wakeup ()

void	addNode (std::vector< MessageBuffer > &inNode, std::vector< MessageBuffer > &outNode)

void	print (std::ostream &out) const

int	get_vnet (int vc)

int	get_router_id ()

void	init_net_ptr (GarnetNetwork *net_ptr)

uint32_t	functionalWrite (Packet *)

Public Member Functions inherited from ClockedObject
	ClockedObject (const ClockedObjectParams *p)

const Params *	params () const

void	serialize (CheckpointOut &cp) const override
	Serialize an object. More...

void	unserialize (CheckpointIn &cp) override
	Unserialize an object. More...

Public Member Functions inherited from SimObject
virtual	~SimObject ()

virtual const std::string	name () const

virtual void	loadState (CheckpointIn &cp)
	loadState() is called on each SimObject when restoring from a checkpoint. More...

virtual void	initState ()
	initState() is called on each SimObject when not restoring from a checkpoint. More...

virtual void	regProbePoints ()
	Register probe points for this object. More...

virtual void	regProbeListeners ()
	Register probe listeners for this object. More...

ProbeManager *	getProbeManager ()
	Get the probe manager for this object. More...

virtual Port &	getPort (const std::string &if_name, PortID idx=InvalidPortID)
	Get a port with a given name and index. More...

virtual void	startup ()
	startup() is the final initialization call before simulation. More...

DrainState	drain () override
	Provide a default implementation of the drain interface for objects that don't need draining. More...

virtual void	memWriteback ()
	Write back dirty buffers to memory using functional writes. More...

virtual void	memInvalidate ()
	Invalidate the contents of memory buffers. More...

void	serialize (CheckpointOut &cp) const override
	Serialize an object. More...

void	unserialize (CheckpointIn &cp) override
	Unserialize an object. More...

const Params *	params () const

	SimObject (const Params *_params)

Public Member Functions inherited from EventManager
EventQueue *	eventQueue () const

void	schedule (Event &event, Tick when)

void	deschedule (Event &event)

void	reschedule (Event &event, Tick when, bool always=false)

void	schedule (Event *event, Tick when)

void	deschedule (Event *event)

void	reschedule (Event *event, Tick when, bool always=false)

void	wakeupEventQueue (Tick when=(Tick) -1)

void	setCurTick (Tick newVal)

	EventManager (EventManager &em)

	EventManager (EventManager *em)

	EventManager (EventQueue *eq)

Public Member Functions inherited from Serializable
	Serializable ()

virtual	~Serializable ()

void	serializeSection (CheckpointOut &cp, const char *name) const
	Serialize an object into a new section. More...

void	serializeSection (CheckpointOut &cp, const std::string &name) const

void	unserializeSection (CheckpointIn &cp, const char *name)
	Unserialize an a child object. More...

void	unserializeSection (CheckpointIn &cp, const std::string &name)

Public Member Functions inherited from Drainable
DrainState	drainState () const
	Return the current drain state of an object. More...

virtual void	notifyFork ()
	Notify a child process of a fork. More...

Public Member Functions inherited from Stats::Group
	Group (Group parent, const char name=nullptr)
	Construct a new statistics group. More...

virtual	~Group ()

virtual void	regStats ()
	Callback to set stat parameters. More...

virtual void	resetStats ()
	Callback to reset stats. More...

virtual void	preDumpStats ()
	Callback before stats are dumped. More...

void	addStat (Stats::Info *info)
	Register a stat with this group. More...

const std::map< std::string, Group * > &	getStatGroups () const
	Get all child groups associated with this object. More...

const std::vector< Info * > &	getStats () const
	Get all stats associated with this object. More...

void	addStatGroup (const char name, Group block)
	Add a stat block as a child of this block. More...

const Info *	resolveStat (std::string name) const
	Resolve a stat by its name within this group. More...

	Group ()=delete

	Group (const Group &)=delete

Group &	operator= (const Group &)=delete

Public Member Functions inherited from Clocked
void	updateClockPeriod ()
	Update the tick to the current tick. More...

Tick	clockEdge (Cycles cycles=Cycles(0)) const
	Determine the tick when a cycle begins, by default the current one, but the argument also enables the caller to determine a future cycle. More...

Cycles	curCycle () const
	Determine the current cycle, corresponding to a tick aligned to a clock edge. More...

Tick	nextCycle () const
	Based on the clock of the object, determine the start tick of the first cycle that is at least one cycle in the future. More...

uint64_t	frequency () const

Tick	clockPeriod () const

double	voltage () const

Cycles	ticksToCycles (Tick t) const

Tick	cyclesToTicks (Cycles c) const

Public Member Functions inherited from Consumer
	Consumer (ClockedObject *_em)

virtual	~Consumer ()

virtual void	storeEventInfo (int info)

bool	alreadyScheduled (Tick time)

void	insertScheduledWakeupTime (Tick time)

void	scheduleEventAbsolute (Tick timeAbs)

Private Member Functions
bool	checkStallQueue ()

bool	flitisizeMessage (MsgPtr msg_ptr, int vnet)

int	calculateVC (int vnet)

void	scheduleOutputLink ()
	This function looks at the NI buffers if some buffer has flits which are ready to traverse the link in the next cycle, and the downstream output vc associated with this flit has buffers left, the link is scheduled for the next cycle. More...

void	checkReschedule ()

void	sendCredit (flit *t_flit, bool is_free)

void	incrementStats (flit *t_flit)

Private Attributes
GarnetNetwork *	m_net_ptr

const NodeID	m_id

const int	m_virtual_networks

const int	m_vc_per_vnet

int	m_router_id

std::vector< int >	m_vc_allocator

int	m_vc_round_robin

flitBuffer	outFlitQueue
	Used to model link contention. More...

flitBuffer	outCreditQueue

int	m_deadlock_threshold

std::vector< OutVcState >	outVcState

NetworkLink *	inNetLink

NetworkLink *	outNetLink

CreditLink *	inCreditLink

CreditLink *	outCreditLink

std::deque< flit * >	m_stall_queue

std::vector< int >	m_stall_count

std::vector< flitBuffer >	niOutVcs

std::vector< Cycles >	m_ni_out_vcs_enqueue_time

std::vector< MessageBuffer * >	inNode_ptr

std::vector< MessageBuffer * >	outNode_ptr

std::vector< int >	vc_busy_counter

Additional Inherited Members
Static Public Member Functions inherited from SimObject
static void	serializeAll (CheckpointOut &cp)
	Serialize all SimObjects in the system. More...

static SimObject *	find (const char *name)
	Find the SimObject with the given name and return a pointer to it. More...

Static Public Member Functions inherited from Serializable
static const std::string &	currentSection ()
	Gets the fully-qualified name of the active section. More...

static void	serializeAll (const std::string &cpt_dir)

static void	unserializeGlobals (CheckpointIn &cp)

Public Attributes inherited from ClockedObject
PowerState *	powerState

Protected Member Functions inherited from Drainable
	Drainable ()

virtual	~Drainable ()

virtual void	drainResume ()
	Resume execution after a successful drain. More...

void	signalDrainDone () const
	Signal that an object is drained. More...

Protected Member Functions inherited from Clocked
	Clocked (ClockDomain &clk_domain)
	Create a clocked object and set the clock domain based on the parameters. More...

	Clocked (Clocked &)=delete

Clocked &	operator= (Clocked &)=delete

virtual	~Clocked ()
	Virtual destructor due to inheritance. More...

void	resetClock () const
	Reset the object's clock using the current global tick value. More...

virtual void	clockPeriodUpdated ()
	A hook subclasses can implement so they can do any extra work that's needed when the clock rate is changed. More...

Protected Member Functions inherited from Consumer
void	scheduleEvent (Cycles timeDelta)

Protected Attributes inherited from SimObject
const SimObjectParams *	_params
	Cached copy of the object parameters. More...

Protected Attributes inherited from EventManager
EventQueue *	eventq
	A pointer to this object's event queue. More...

Detailed Description

Definition at line 50 of file NetworkInterface.hh.

Member Typedef Documentation

◆ Params

typedef GarnetNetworkInterfaceParams NetworkInterface::Params

Definition at line 53 of file NetworkInterface.hh.

Constructor & Destructor Documentation

◆ NetworkInterface()

NetworkInterface::NetworkInterface ( const Params * p )

Definition at line 46 of file NetworkInterface.cc.

References INFINITE_, m_ni_out_vcs_enqueue_time, m_stall_count, m_vc_per_vnet, m_virtual_networks, and niOutVcs.

Referenced by functionalWrite().

◆ ~NetworkInterface()

NetworkInterface::~NetworkInterface ( )

default

Member Function Documentation

◆ addInPort()

void NetworkInterface::addInPort	(	NetworkLink *	in_link,
		CreditLink *	credit_link
	)

Definition at line 77 of file NetworkInterface.cc.

References inNetLink, outCreditLink, outCreditQueue, NetworkLink::setLinkConsumer(), and NetworkLink::setSourceQueue().

◆ addNode()

void NetworkInterface::addNode	(	std::vector< MessageBuffer *> &	inNode,
		std::vector< MessageBuffer *> &	outNode
	)

Definition at line 101 of file NetworkInterface.cc.

References inNode_ptr, and outNode_ptr.

◆ addOutPort()

void NetworkInterface::addOutPort	(	NetworkLink *	out_link,
		CreditLink *	credit_link,
		SwitchID	router_id
	)

Definition at line 87 of file NetworkInterface.cc.

References inCreditLink, m_router_id, outFlitQueue, outNetLink, NetworkLink::setLinkConsumer(), and NetworkLink::setSourceQueue().

◆ calculateVC()

int NetworkInterface::calculateVC ( int vnet )

private

Definition at line 388 of file NetworkInterface.cc.

References Clocked::curCycle(), curTick(), ArmISA::i, IDLE_, m_deadlock_threshold, m_vc_allocator, m_vc_per_vnet, SimObject::name(), outVcState, panic_if, and vc_busy_counter.

Referenced by flitisizeMessage().

◆ checkReschedule()

void NetworkInterface::checkReschedule ( )

private

Definition at line 487 of file NetworkInterface.cc.

References Clocked::clockEdge(), Clocked::curCycle(), inNode_ptr, niOutVcs, and Consumer::scheduleEvent().

Referenced by wakeup().

◆ checkStallQueue()

bool NetworkInterface::checkStallQueue ( )

private

Definition at line 263 of file NetworkInterface.cc.

References Clocked::clockEdge(), Clocked::cyclesToTicks(), flit::get_msg_ptr(), flit::get_vnet(), incrementStats(), m_stall_count, m_stall_queue, outNode_ptr, and sendCredit().

Referenced by wakeup().

◆ dequeueCallback()

void NetworkInterface::dequeueCallback ( )

Definition at line 115 of file NetworkInterface.cc.

References Clocked::clockEdge(), and Consumer::scheduleEventAbsolute().

Referenced by wakeup().

◆ flitisizeMessage()

bool NetworkInterface::flitisizeMessage	(	MsgPtr	msg_ptr,
		int	vnet
	)

private

◆ functionalWrite()

uint32_t NetworkInterface::functionalWrite ( Packet * pkt )

Definition at line 515 of file NetworkInterface.cc.

References flitBuffer::functionalWrite(), NetworkInterface(), niOutVcs, and outFlitQueue.

Referenced by init_net_ptr().

◆ get_router_id()

int NetworkInterface::get_router_id ( )

inline

Definition at line 70 of file NetworkInterface.hh.

References m_router_id.

◆ get_vnet()

int NetworkInterface::get_vnet ( int vc )

Definition at line 472 of file NetworkInterface.cc.

References fatal, ArmISA::i, m_vc_per_vnet, and m_virtual_networks.

Referenced by scheduleOutputLink().

◆ incrementStats()

void NetworkInterface::incrementStats ( flit * t_flit )

private

◆ init()

void NetworkInterface::init ( )

virtual

init() is called after all C++ SimObjects have been created and all ports are connected.

Initializations that are independent of unserialization but rely on a fully instantiated and connected SimObject graph should be done here.

Reimplemented from SimObject.

Definition at line 67 of file NetworkInterface.cc.

References ArmISA::i, m_net_ptr, m_vc_per_vnet, m_virtual_networks, and outVcState.

◆ init_net_ptr()

void NetworkInterface::init_net_ptr ( GarnetNetwork * net_ptr )

inline

Definition at line 71 of file NetworkInterface.hh.

References functionalWrite(), and m_net_ptr.

Referenced by GarnetNetwork::GarnetNetwork().

◆ print()

void NetworkInterface::print ( std::ostream & out ) const

virtual

Implements Consumer.

Definition at line 509 of file NetworkInterface.cc.

◆ scheduleOutputLink()

void NetworkInterface::scheduleOutputLink ( )

private

This function looks at the NI buffers if some buffer has flits which are ready to traverse the link in the next cycle, and the downstream output vc associated with this flit has buffers left, the link is scheduled for the next cycle.

Definition at line 419 of file NetworkInterface.cc.

References Clocked::clockEdge(), Clocked::curCycle(), flit::get_type(), get_vnet(), HEAD_TAIL_, ArmISA::i, INFINITE_, flitBuffer::insert(), GarnetNetwork::isVNetOrdered(), m_net_ptr, m_ni_out_vcs_enqueue_time, m_vc_per_vnet, m_vc_round_robin, niOutVcs, outFlitQueue, outNetLink, outVcState, Consumer::scheduleEventAbsolute(), flit::set_time(), and TAIL_.

Referenced by wakeup().

◆ sendCredit()

void NetworkInterface::sendCredit	(	flit *	t_flit,
		bool	is_free
	)

private

Definition at line 256 of file NetworkInterface.cc.

References Clocked::curCycle(), flit::get_vc(), flitBuffer::insert(), and outCreditQueue.

Referenced by checkStallQueue(), and wakeup().

◆ wakeup()

void NetworkInterface::wakeup ( )

virtual

Member Data Documentation

◆ inCreditLink

CreditLink* NetworkInterface::inCreditLink

private

Definition at line 90 of file NetworkInterface.hh.

Referenced by addOutPort(), and wakeup().

◆ inNetLink

NetworkLink* NetworkInterface::inNetLink

private

Definition at line 88 of file NetworkInterface.hh.

Referenced by addInPort(), and wakeup().

◆ inNode_ptr

std::vector<MessageBuffer *> NetworkInterface::inNode_ptr

private

Definition at line 103 of file NetworkInterface.hh.

Referenced by addNode(), checkReschedule(), and wakeup().

◆ m_deadlock_threshold

int NetworkInterface::m_deadlock_threshold

private

Definition at line 85 of file NetworkInterface.hh.

Referenced by calculateVC().

◆ m_id

const NodeID NetworkInterface::m_id

private

Definition at line 77 of file NetworkInterface.hh.

Referenced by flitisizeMessage(), and wakeup().

◆ m_net_ptr

GarnetNetwork* NetworkInterface::m_net_ptr

private

Definition at line 76 of file NetworkInterface.hh.

Referenced by flitisizeMessage(), incrementStats(), init(), init_net_ptr(), and scheduleOutputLink().

◆ m_ni_out_vcs_enqueue_time

std::vector<Cycles> NetworkInterface::m_ni_out_vcs_enqueue_time

private

Definition at line 100 of file NetworkInterface.hh.

Referenced by flitisizeMessage(), NetworkInterface(), and scheduleOutputLink().

◆ m_router_id

int NetworkInterface::m_router_id

private

Definition at line 79 of file NetworkInterface.hh.

Referenced by addOutPort(), flitisizeMessage(), get_router_id(), and wakeup().

◆ m_stall_count

std::vector<int> NetworkInterface::m_stall_count

private

Definition at line 95 of file NetworkInterface.hh.

Referenced by checkStallQueue(), NetworkInterface(), and wakeup().

◆ m_stall_queue

std::deque<flit *> NetworkInterface::m_stall_queue

private

Definition at line 94 of file NetworkInterface.hh.

Referenced by checkStallQueue(), and wakeup().

◆ m_vc_allocator

std::vector<int> NetworkInterface::m_vc_allocator

private

Definition at line 80 of file NetworkInterface.hh.

Referenced by calculateVC().

◆ m_vc_per_vnet

const int NetworkInterface::m_vc_per_vnet

private

Definition at line 78 of file NetworkInterface.hh.

Referenced by calculateVC(), get_vnet(), init(), NetworkInterface(), and scheduleOutputLink().

◆ m_vc_round_robin

int NetworkInterface::m_vc_round_robin

private

Definition at line 81 of file NetworkInterface.hh.

Referenced by scheduleOutputLink().

◆ m_virtual_networks

const int NetworkInterface::m_virtual_networks

private

Definition at line 78 of file NetworkInterface.hh.

Referenced by get_vnet(), init(), and NetworkInterface().

◆ niOutVcs

std::vector<flitBuffer> NetworkInterface::niOutVcs

private

Definition at line 99 of file NetworkInterface.hh.

Referenced by checkReschedule(), flitisizeMessage(), functionalWrite(), NetworkInterface(), and scheduleOutputLink().

◆ outCreditLink

CreditLink* NetworkInterface::outCreditLink

private

Definition at line 91 of file NetworkInterface.hh.

Referenced by addInPort(), and wakeup().

◆ outCreditQueue

flitBuffer NetworkInterface::outCreditQueue

private

Definition at line 84 of file NetworkInterface.hh.

Referenced by addInPort(), sendCredit(), and wakeup().

◆ outFlitQueue

flitBuffer NetworkInterface::outFlitQueue

private

Used to model link contention.

Definition at line 83 of file NetworkInterface.hh.

Referenced by addOutPort(), functionalWrite(), and scheduleOutputLink().

◆ outNetLink

NetworkLink* NetworkInterface::outNetLink

private

Definition at line 89 of file NetworkInterface.hh.

Referenced by addOutPort(), and scheduleOutputLink().

◆ outNode_ptr

std::vector<MessageBuffer *> NetworkInterface::outNode_ptr

private

Definition at line 105 of file NetworkInterface.hh.

Referenced by addNode(), checkStallQueue(), and wakeup().

◆ outVcState

std::vector<OutVcState> NetworkInterface::outVcState

private

Definition at line 86 of file NetworkInterface.hh.

Referenced by calculateVC(), flitisizeMessage(), init(), scheduleOutputLink(), and wakeup().

◆ vc_busy_counter

std::vector<int> NetworkInterface::vc_busy_counter

private

Definition at line 107 of file NetworkInterface.hh.

Referenced by calculateVC().

The documentation for this class was generated from the following files:

mem/ruby/network/garnet2.0/NetworkInterface.hh
mem/ruby/network/garnet2.0/NetworkInterface.cc

Public Types

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ Params

Constructor & Destructor Documentation

◆ NetworkInterface()

◆ ~NetworkInterface()

Member Function Documentation

◆ addInPort()

◆ addNode()

◆ addOutPort()

◆ calculateVC()

◆ checkReschedule()

◆ checkStallQueue()

◆ dequeueCallback()

◆ flitisizeMessage()

◆ functionalWrite()

◆ get_router_id()

◆ get_vnet()

◆ incrementStats()

◆ init()

◆ init_net_ptr()

◆ print()

◆ scheduleOutputLink()

◆ sendCredit()

◆ wakeup()

Member Data Documentation

◆ inCreditLink

◆ inNetLink

◆ inNode_ptr

◆ m_deadlock_threshold

◆ m_id

◆ m_net_ptr

◆ m_ni_out_vcs_enqueue_time

◆ m_router_id

◆ m_stall_count

◆ m_stall_queue

◆ m_vc_allocator

◆ m_vc_per_vnet

◆ m_vc_round_robin

◆ m_virtual_networks

◆ niOutVcs

◆ outCreditLink

◆ outCreditQueue

◆ outFlitQueue

◆ outNetLink

◆ outNode_ptr

◆ outVcState

◆ vc_busy_counter