Inheritance diagram for IGbE::TxDescCache:

Public Member Functions
	TxDescCache (IGbE *i, std::string n, int s)

unsigned	getPacketSize (EthPacketPtr p)
	Tell the cache to DMA a packet from main memory into its buffer and return the size the of the packet to reserve space in tx fifo. More...

void	getPacketData (EthPacketPtr p)

void	processContextDesc ()

unsigned	descInBlock (unsigned num_desc)
	Return the number of dsecriptors in a cache block for threshold operations. More...

bool	packetAvailable ()
	Ask if the packet has been transfered so the state machine can give it to the fifo. More...

bool	packetWaiting ()
	Ask if we are still waiting for the packet to be transfered. More...

bool	packetMultiDesc ()
	Ask if this packet is composed of multiple descriptors so even if we've got data, we need to wait for more before we can send it out. More...

void	pktComplete ()
	Called by event when dma to write packet is completed. More...

void	headerComplete ()

void	completionWriteback (Addr a, bool enabled)

bool	hasOutstandingEvents () override

void	nullCallback ()

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

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

Public Member Functions inherited from IGbE::DescCache< iGbReg::TxDesc >
	DescCache (IGbE *i, const std::string n, int s)

virtual	~DescCache ()

std::string	name ()

void	areaChanged ()
	If the address/len/head change when we've got descriptors that are dirty that is very bad. More...

void	writeback (Addr aMask)

void	writeback1 ()

void	fetchDescriptors ()
	Fetch a chunk of descriptors into the descriptor cache. More...

void	fetchDescriptors1 ()

void	fetchComplete ()
	Called by event when dma to read descriptors is completed. More...

void	wbComplete ()
	Called by event when dma to writeback descriptors is completed. More...

unsigned	descLeft () const

unsigned	descUsed () const

unsigned	descUnused () const

void	reset ()

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

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

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 Attributes
EventWrapper< TxDescCache,&TxDescCache::pktComplete >	pktEvent

EventWrapper< TxDescCache,&TxDescCache::headerComplete >	headerEvent

EventWrapper< TxDescCache,&TxDescCache::nullCallback >	nullEvent

Public Attributes inherited from IGbE::DescCache< iGbReg::TxDesc >
std::string	annSmFetch
	Annotate sm. More...

std::string	annSmWb

std::string	annUnusedDescQ

std::string	annUsedCacheQ

std::string	annUsedDescQ

std::string	annUnusedCacheQ

std::string	annDescQ

EventWrapper< DescCache,&DescCache::writeback1 >	wbDelayEvent

EventWrapper< DescCache,&DescCache::fetchDescriptors1 >	fetchDelayEvent

EventWrapper< DescCache,&DescCache::fetchComplete >	fetchEvent

EventWrapper< DescCache,&DescCache::wbComplete >	wbEvent

Protected Member Functions
Addr	descBase () const override

long	descHead () const override

long	descTail () const override

long	descLen () const override

void	updateHead (long h) override

void	enableSm () override

void	actionAfterWb () override

void	fetchAfterWb () override

Protected Member Functions inherited from IGbE::DescCache< iGbReg::TxDesc >
Addr	pciToDma (Addr a)
	Shortcut for DMA address translation. More...

Protected Attributes
bool	pktDone

bool	isTcp

bool	pktWaiting

bool	pktMultiDesc

Addr	completionAddress

bool	completionEnabled

uint32_t	descEnd

bool	useTso

Addr	tsoHeaderLen

Addr	tsoMss

Addr	tsoTotalLen

Addr	tsoUsedLen

Addr	tsoPrevSeq

Addr	tsoPktPayloadBytes

bool	tsoLoadedHeader

bool	tsoPktHasHeader

uint8_t	tsoHeader [256]

Addr	tsoDescBytesUsed

Addr	tsoCopyBytes

int	tsoPkts

Protected Attributes inherited from IGbE::DescCache< iGbReg::TxDesc >
CacheType	usedCache

CacheType	unusedCache

iGbReg::TxDesc *	fetchBuf

iGbReg::TxDesc *	wbBuf

IGbE *	igbe

std::string	_name

int	cachePnt

int	size

int	curFetching

int	wbOut

bool	moreToWb

Addr	wbAlignment

EthPacketPtr	pktPtr
	The packet that is currently being dmad to memory if any. More...

Additional Inherited Members
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 Types inherited from IGbE::DescCache< iGbReg::TxDesc >
typedef std::deque < iGbReg::TxDesc * >	CacheType

Detailed Description

Definition at line 403 of file i8254xGBe.hh.

Constructor & Destructor Documentation

IGbE::TxDescCache::TxDescCache	(	IGbE *	i,
		std::string	n,
		int	s
	)

Definition at line 1545 of file i8254xGBe.cc.

References IGbE::DescCache< iGbReg::TxDesc >::annDescQ, IGbE::DescCache< iGbReg::TxDesc >::annSmFetch, IGbE::DescCache< iGbReg::TxDesc >::annSmWb, IGbE::DescCache< iGbReg::TxDesc >::annUnusedCacheQ, IGbE::DescCache< iGbReg::TxDesc >::annUnusedDescQ, IGbE::DescCache< iGbReg::TxDesc >::annUsedCacheQ, and IGbE::DescCache< iGbReg::TxDesc >::annUsedDescQ.

Member Function Documentation

void IGbE::TxDescCache::actionAfterWb ( )

overrideprotectedvirtual

Reimplemented from IGbE::DescCache< iGbReg::TxDesc >.

Definition at line 1955 of file i8254xGBe.cc.

References DPRINTF, iGbReg::IT_TXDW, mbits(), and PciDevice::pciToDma().

void IGbE::TxDescCache::completionWriteback	(	Addr	a,
		bool	enabled
	)

inline

Definition at line 492 of file i8254xGBe.hh.

References ArmISA::a, completionAddress, completionEnabled, DPRINTF, and Stats::enabled().

Referenced by IGbE::write().

Addr IGbE::TxDescCache::descBase ( ) const

inlineoverrideprotectedvirtual

Implements IGbE::DescCache< iGbReg::TxDesc >.

Definition at line 406 of file i8254xGBe.hh.

References IGbE::DescCache< iGbReg::TxDesc >::igbe, IGbE::regs, and iGbReg::Regs::tdba.

long IGbE::TxDescCache::descHead ( ) const

inlineoverrideprotectedvirtual

Implements IGbE::DescCache< iGbReg::TxDesc >.

Definition at line 407 of file i8254xGBe.hh.

References IGbE::DescCache< iGbReg::TxDesc >::igbe, IGbE::regs, and iGbReg::Regs::tdh.

unsigned IGbE::TxDescCache::descInBlock ( unsigned num_desc )

inline

Return the number of dsecriptors in a cache block for threshold operations.

Definition at line 459 of file i8254xGBe.hh.

References DmaDevice::cacheBlockSize(), and IGbE::DescCache< iGbReg::TxDesc >::igbe.

long IGbE::TxDescCache::descLen ( ) const

inlineoverrideprotectedvirtual

Implements IGbE::DescCache< iGbReg::TxDesc >.

Definition at line 409 of file i8254xGBe.hh.

References IGbE::DescCache< iGbReg::TxDesc >::igbe, IGbE::regs, and iGbReg::Regs::tdlen.

long IGbE::TxDescCache::descTail ( ) const

inlineoverrideprotectedvirtual

Implements IGbE::DescCache< iGbReg::TxDesc >.

Definition at line 408 of file i8254xGBe.hh.

References IGbE::DescCache< iGbReg::TxDesc >::igbe, IGbE::regs, and iGbReg::Regs::tdt.

void IGbE::TxDescCache::enableSm ( )

overrideprotectedvirtual

Implements IGbE::DescCache< iGbReg::TxDesc >.

Definition at line 2039 of file i8254xGBe.cc.

References Draining.

void IGbE::TxDescCache::fetchAfterWb ( )

inlineoverrideprotectedvirtual

Implements IGbE::DescCache< iGbReg::TxDesc >.

Definition at line 413 of file i8254xGBe.hh.

References Drainable::drainState(), IGbE::DescCache< iGbReg::TxDesc >::fetchDescriptors(), IGbE::DescCache< iGbReg::TxDesc >::igbe, Running, and IGbE::txTick.

void IGbE::TxDescCache::getPacketData ( EthPacketPtr p )

Definition at line 1706 of file i8254xGBe.cc.

References DPRINTF, iGbReg::TxdOp::getBuf(), iGbReg::TxdOp::getLen(), iGbReg::TxdOp::isData(), iGbReg::TxdOp::isLegacy(), MipsISA::p, and PciDevice::pciToDma().

Referenced by IGbE::txStateMachine().

unsigned IGbE::TxDescCache::getPacketSize ( EthPacketPtr p )

Tell the cache to DMA a packet from main memory into its buffer and return the size the of the packet to reserve space in tx fifo.

Returns: size of the packet

Definition at line 1666 of file i8254xGBe.cc.

References iGbReg::TxDesc::d1, iGbReg::TxDesc::d2, DPRINTF, and iGbReg::TxdOp::getLen().

Referenced by IGbE::txStateMachine().

bool IGbE::TxDescCache::hasOutstandingEvents ( )

overridevirtual

Reimplemented from IGbE::DescCache< iGbReg::TxDesc >.

Definition at line 2048 of file i8254xGBe.cc.

Referenced by IGbE::checkDrain(), and IGbE::drain().

void IGbE::TxDescCache::headerComplete ( )

Definition at line 1641 of file i8254xGBe.cc.

References DPRINTF, and iGbReg::TxdOp::getLen().

void IGbE::TxDescCache::nullCallback ( )

inline

Definition at line 502 of file i8254xGBe.hh.

References DPRINTF.

bool IGbE::TxDescCache::packetAvailable ( )

Ask if the packet has been transfered so the state machine can give it to the fifo.

Returns: packet available in descriptor cache

Definition at line 2029 of file i8254xGBe.cc.

Referenced by IGbE::txStateMachine().

bool IGbE::TxDescCache::packetMultiDesc ( )

inline

Ask if this packet is composed of multiple descriptors so even if we've got data, we need to wait for more before we can send it out.

Returns: packet can't be sent out because it's a multi-descriptor packet

Definition at line 481 of file i8254xGBe.hh.

References pktMultiDesc.

Referenced by IGbE::txStateMachine().

bool IGbE::TxDescCache::packetWaiting ( )

inline

Ask if we are still waiting for the packet to be transfered.

Returns: packet still in transit.

Definition at line 473 of file i8254xGBe.hh.

References pktWaiting.

Referenced by IGbE::txStateMachine().

void IGbE::TxDescCache::pktComplete ( )

Called by event when dma to write packet is completed.

Definition at line 1754 of file i8254xGBe.cc.

References Net::cksum(), curTick(), iGbReg::TxDesc::d1, iGbReg::TxDesc::d2, DPRINTF, DTRACE, iGbReg::TxdOp::eop(), Net::TcpHdr::flags(), iGbReg::TxdOp::getLen(), Net::IpHdr::id(), ArmISA::ide, iGbReg::TxdOp::ip(), iGbReg::TxdOp::isData(), iGbReg::TxdOp::isLegacy(), iGbReg::TxdOp::ixsm(), Net::IpHdr::len(), Net::UdpHdr::len(), panic, ArmISA::rs, Net::TcpHdr::seq(), iGbReg::TxdOp::setDd(), X86ISA::size(), Net::IpHdr::sum(), Net::TcpHdr::sum(), Net::UdpHdr::sum(), iGbReg::TxdOp::tcp(), iGbReg::TxdOp::txsm(), iGbReg::TxdOp::vle(), and ArmISA::writeback.

void IGbE::TxDescCache::processContextDesc ( )

Definition at line 1564 of file i8254xGBe.cc.

References DPRINTF, iGbReg::TxdOp::getBuf(), iGbReg::TxdOp::getLen(), iGbReg::TxdOp::getTsoLen(), iGbReg::TxdOp::hdrlen(), iGbReg::TxdOp::isContext(), iGbReg::TxdOp::isData(), iGbReg::TxdOp::isType(), iGbReg::TxdOp::mss(), PciDevice::pciToDma(), iGbReg::TxdOp::setDd(), iGbReg::TxdOp::tcp(), iGbReg::TxdOp::tse(), iGbReg::TxdOp::TXD_ADVDATA, and iGbReg::TxdOp::TXD_CNXT.

Referenced by IGbE::txStateMachine().

void IGbE::TxDescCache::serialize ( CheckpointOut & cp ) const

overridevirtual

Serialize an object.

Output an object's state into the current checkpoint section.

Parameters

cp	Checkpoint state

Implements Serializable.

Definition at line 1971 of file i8254xGBe.cc.

References IGbE::DescCache< T >::serialize(), SERIALIZE_ARRAY, and SERIALIZE_SCALAR.

void IGbE::TxDescCache::unserialize ( CheckpointIn & cp )

overridevirtual

Unserialize an object.

Read an object's state from the current checkpoint section.

Parameters

cp	Checkpoint state

Implements Serializable.

Definition at line 2000 of file i8254xGBe.cc.

References IGbE::DescCache< T >::unserialize(), UNSERIALIZE_ARRAY, and UNSERIALIZE_SCALAR.

void IGbE::TxDescCache::updateHead ( long h )

inlineoverrideprotectedvirtual

Implements IGbE::DescCache< iGbReg::TxDesc >.

Definition at line 410 of file i8254xGBe.hh.

References IGbE::DescCache< iGbReg::TxDesc >::igbe, IGbE::regs, and iGbReg::Regs::tdh.

Member Data Documentation

Addr IGbE::TxDescCache::completionAddress

protected

Definition at line 424 of file i8254xGBe.hh.

Referenced by completionWriteback().

bool IGbE::TxDescCache::completionEnabled

protected

Definition at line 425 of file i8254xGBe.hh.

Referenced by completionWriteback().

uint32_t IGbE::TxDescCache::descEnd

protected

Definition at line 426 of file i8254xGBe.hh.

EventWrapper<TxDescCache, &TxDescCache::headerComplete> IGbE::TxDescCache::headerEvent

Definition at line 489 of file i8254xGBe.hh.

bool IGbE::TxDescCache::isTcp

protected

Definition at line 421 of file i8254xGBe.hh.

EventWrapper<TxDescCache, &TxDescCache::nullCallback> IGbE::TxDescCache::nullEvent

Definition at line 505 of file i8254xGBe.hh.

bool IGbE::TxDescCache::pktDone

protected

Definition at line 420 of file i8254xGBe.hh.

EventWrapper<TxDescCache, &TxDescCache::pktComplete> IGbE::TxDescCache::pktEvent

Definition at line 486 of file i8254xGBe.hh.

bool IGbE::TxDescCache::pktMultiDesc

protected

Definition at line 423 of file i8254xGBe.hh.

Referenced by packetMultiDesc().

bool IGbE::TxDescCache::pktWaiting

protected

Definition at line 422 of file i8254xGBe.hh.

Referenced by packetWaiting().

Addr IGbE::TxDescCache::tsoCopyBytes

protected

Definition at line 441 of file i8254xGBe.hh.

Addr IGbE::TxDescCache::tsoDescBytesUsed

protected

Definition at line 440 of file i8254xGBe.hh.

uint8_t IGbE::TxDescCache::tsoHeader[256]

protected

Definition at line 439 of file i8254xGBe.hh.

Addr IGbE::TxDescCache::tsoHeaderLen

protected

Definition at line 431 of file i8254xGBe.hh.

bool IGbE::TxDescCache::tsoLoadedHeader

protected

Definition at line 437 of file i8254xGBe.hh.

Addr IGbE::TxDescCache::tsoMss

protected

Definition at line 432 of file i8254xGBe.hh.

bool IGbE::TxDescCache::tsoPktHasHeader

protected

Definition at line 438 of file i8254xGBe.hh.

Addr IGbE::TxDescCache::tsoPktPayloadBytes

protected

Definition at line 436 of file i8254xGBe.hh.

int IGbE::TxDescCache::tsoPkts

protected

Definition at line 442 of file i8254xGBe.hh.

Addr IGbE::TxDescCache::tsoPrevSeq

protected

Definition at line 435 of file i8254xGBe.hh.

Addr IGbE::TxDescCache::tsoTotalLen

protected

Definition at line 433 of file i8254xGBe.hh.

Addr IGbE::TxDescCache::tsoUsedLen

protected

Definition at line 434 of file i8254xGBe.hh.

bool IGbE::TxDescCache::useTso

protected

Definition at line 430 of file i8254xGBe.hh.

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

dev/net/i8254xGBe.hh
dev/net/i8254xGBe.cc

Public Member Functions

Public Attributes

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation