#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 ()

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...

Enums::PwrState	pwrState () const

std::string	pwrStateName () const

std::vector< double >	pwrStateWeights () const
	Returns the percentage residency for each power state. More...

void	computeStats ()
	Record stats values like state residency by computing the time difference from previous update. More...

void	pwrState (Enums::PwrState)

void	regStats () override
	Register statistics for this object. More...

Public Member Functions inherited from SimObject
const Params *	params () const

	SimObject (const Params *_params)

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	resetStats ()
	Reset statistics associated with this object. 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 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...

Public Member Functions inherited from EventManager
	EventManager (EventManager &em)

	EventManager (EventManager *em)

	EventManager (EventQueue *eq)

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)

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 Clocked
void	updateClockPeriod () const
	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

const int	m_num_vcs

int	m_router_id

std::vector< OutVcState * >	m_out_vc_state

std::vector< int >	m_vc_allocator

int	m_vc_round_robin

flitBuffer *	outFlitQueue

flitBuffer *	outCreditQueue

int	m_deadlock_threshold

NetworkLink *	inNetLink

NetworkLink *	outNetLink

CreditLink *	inCreditLink

CreditLink *	outCreditLink

std::deque< flit * >	m_stall_queue

std::vector< int >	m_stall_count

std::vector< flitBuffer * >	m_ni_out_vcs

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 ()
	Get the fully-qualified name of the active section. More...

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

static void	unserializeGlobals (CheckpointIn &cp)

Static Public Attributes inherited from Serializable
static int	ckptCount = 0

static int	ckptMaxCount = 0

static int	ckptPrevCount = -1

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...

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

Protected Attributes inherited from ClockedObject
Enums::PwrState	_currPwrState
	To keep track of the current power state. More...

Tick	prvEvalTick

Stats::Scalar	numPwrStateTransitions

Stats::Distribution	pwrStateClkGateDist

Stats::Vector	pwrStateResidencyTicks

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 52 of file NetworkInterface.hh.

Member Typedef Documentation

typedef GarnetNetworkInterfaceParams NetworkInterface::Params

Definition at line 55 of file NetworkInterface.hh.

Constructor & Destructor Documentation

NetworkInterface::NetworkInterface ( const Params * p )

Definition at line 50 of file NetworkInterface.cc.

References ArmISA::i, INFINITE_, m_ni_out_vcs, m_ni_out_vcs_enqueue_time, m_num_vcs, m_router_id, m_stall_count, m_vc_allocator, m_vc_round_robin, m_virtual_networks, and outCreditQueue.

NetworkInterface::~NetworkInterface ( )

Definition at line 85 of file NetworkInterface.cc.

References m5::stl_helpers::deletePointers(), m_ni_out_vcs, m_out_vc_state, outCreditQueue, and outFlitQueue.

Member Function Documentation

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

Definition at line 94 of file NetworkInterface.cc.

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

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

Definition at line 119 of file NetworkInterface.cc.

References inNode_ptr, and outNode_ptr.

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

Definition at line 104 of file NetworkInterface.cc.

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

int NetworkInterface::calculateVC ( int vnet )

private

Definition at line 406 of file NetworkInterface.cc.

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

Referenced by flitisizeMessage().

void NetworkInterface::checkReschedule ( )

private

Definition at line 506 of file NetworkInterface.cc.

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

Referenced by wakeup().

bool NetworkInterface::checkStallQueue ( )

private

Definition at line 281 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().

void NetworkInterface::dequeueCallback ( )

Definition at line 133 of file NetworkInterface.cc.

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

Referenced by wakeup().

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

private

uint32_t NetworkInterface::functionalWrite ( Packet * pkt )

Definition at line 534 of file NetworkInterface.cc.

References flitBuffer::functionalWrite(), ArmISA::i, m_ni_out_vcs, m_num_vcs, and outFlitQueue.

int NetworkInterface::get_router_id ( )

inline

Definition at line 72 of file NetworkInterface.hh.

References m_router_id.

int NetworkInterface::get_vnet ( int vc )

Definition at line 491 of file NetworkInterface.cc.

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

Referenced by scheduleOutputLink().

void NetworkInterface::incrementStats ( flit * t_flit )

private

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 78 of file NetworkInterface.cc.

References ArmISA::i, m_net_ptr, m_num_vcs, and m_out_vc_state.

void NetworkInterface::init_net_ptr ( GarnetNetwork * net_ptr )

inline

Definition at line 73 of file NetworkInterface.hh.

References m_net_ptr.

Referenced by GarnetNetwork::GarnetNetwork().

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

virtual

Implements Consumer.

Definition at line 528 of file NetworkInterface.cc.

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 437 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, m_ni_out_vcs_enqueue_time, m_num_vcs, m_out_vc_state, m_vc_per_vnet, m_vc_round_robin, outFlitQueue, outNetLink, Consumer::scheduleEventAbsolute(), flit::set_time(), and TAIL_.