Source code of Windows XP (NT5)
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
|
|
/*++
Copyright (c) 1989 Microsoft Corporation
Module Name:
afddata.h
Abstract:
This module declares global data for AFD.
Author:
David Treadwell (davidtr) 21-Feb-1992
Revision History: Vadim Eydelman (vadime) 1998-1999 NT5.0 optimizations
--*/
#ifndef _AFDDATA_
#define _AFDDATA_
extern PDEVICE_OBJECT AfdDeviceObject;
extern LIST_ENTRY AfdEndpointListHead;extern LIST_ENTRY AfdConstrainedEndpointListHead;
extern LIST_ENTRY AfdPollListHead;extern AFD_QSPIN_LOCK AfdPollListLock;
extern LIST_ENTRY AfdTransportInfoListHead;extern KEVENT AfdContextWaitEvent;#define AFD_CONTEXT_BUSY ((PVOID)-1)
#define AFD_CONTEXT_WAITING ((PVOID)-2)
extern PKPROCESS AfdSystemProcess;extern FAST_IO_DISPATCH AfdFastIoDispatch;
//
// Global data which must always be in nonpaged pool,
// even when the driver is paged out (resource, lookaside lists).
//
PAFD_GLOBAL_DATA AfdGlobalData;#define AfdResource (&AfdGlobalData->Resource)
#define AfdLookasideLists (AfdGlobalData)
#define AfdAlignmentTable (AfdGlobalData->BufferAlignmentTable)
//
// Globals for dealing with AFD's executive worker thread.
//
extern LIST_ENTRY AfdWorkQueueListHead;extern BOOLEAN AfdWorkThreadRunning;extern PIO_WORKITEM AfdWorkQueueItem;
//
// Globals to track the buffers used by AFD.
//
extern ULONG AfdLargeBufferListDepth;#define AFD_SM_DEFAULT_LARGE_LIST_DEPTH 0
#define AFD_MM_DEFAULT_LARGE_LIST_DEPTH 2
#define AFD_LM_DEFAULT_LARGE_LIST_DEPTH 10
extern ULONG AfdMediumBufferListDepth;#define AFD_SM_DEFAULT_MEDIUM_LIST_DEPTH 4
#define AFD_MM_DEFAULT_MEDIUM_LIST_DEPTH 8
#define AFD_LM_DEFAULT_MEDIUM_LIST_DEPTH 24
extern ULONG AfdSmallBufferListDepth;#define AFD_SM_DEFAULT_SMALL_LIST_DEPTH 8
#define AFD_MM_DEFAULT_SMALL_LIST_DEPTH 16
#define AFD_LM_DEFAULT_SMALL_LIST_DEPTH 32
extern ULONG AfdBufferTagListDepth;#define AFD_SM_DEFAULT_TAG_LIST_DEPTH 16
#define AFD_MM_DEFAULT_TAG_LIST_DEPTH 32
#define AFD_LM_DEFAULT_TAG_LIST_DEPTH 64
extern CLONG AfdLargeBufferSize;// default value is AfdBufferLengthForOnePage
extern CLONG AfdMediumBufferSize;#define AFD_DEFAULT_MEDIUM_BUFFER_SIZE 1504
extern CLONG AfdSmallBufferSize;#define AFD_DEFAULT_SMALL_BUFFER_SIZE 128
extern CLONG AfdBufferTagSize;#define AFD_DEFAULT_TAG_BUFFER_SIZE 0
extern CLONG AfdStandardAddressLength;#define AFD_DEFAULT_STD_ADDRESS_LENGTH sizeof(TA_IP_ADDRESS)
extern CLONG AfdBufferLengthForOnePage;extern ULONG AfdBufferAlignment;#define AFD_MINIMUM_BUFFER_ALIGNMENT \
max(TYPE_ALIGNMENT(TRANSPORT_ADDRESS), \ max(TYPE_ALIGNMENT(KAPC), \ max(TYPE_ALIGNMENT(WORK_QUEUE_ITEM), \ max(TYPE_ALIGNMENT(AFD_BUFFER), \ max(TYPE_ALIGNMENT(MDL), \ max(TYPE_ALIGNMENT(IRP), \ MAX_NATURAL_ALIGNMENT))))))
extern ULONG AfdAlignmentTableSize;extern ULONG AfdAlignmentOverhead;extern ULONG AfdBufferOverhead;
//
// Globals for tuning TransmitFile().
//
extern LIST_ENTRY AfdQueuedTransmitFileListHead;extern AFD_QSPIN_LOCK AfdQueuedTransmitFileSpinLock;extern ULONG AfdActiveTransmitFileCount;extern ULONG AfdMaxActiveTransmitFileCount;#define AFD_DEFAULT_MAX_ACTIVE_TRANSMIT_FILE_COUNT 2
extern ULONG AfdDefaultTransmitWorker;#define AFD_DEFAULT_TRANSMIT_WORKER AFD_TF_USE_SYSTEM_THREAD
#define AFD_MAX_FAST_TRANSPORT_ADDRESS 32
//
// Various pieces of configuration information, with default values.
//
extern CCHAR AfdIrpStackSize;#define AFD_DEFAULT_IRP_STACK_SIZE 4
extern CCHAR AfdPriorityBoost;#define AFD_DEFAULT_PRIORITY_BOOST 2
extern ULONG AfdFastSendDatagramThreshold;#define AFD_FAST_SEND_DATAGRAM_THRESHOLD 1024
extern ULONG AfdTPacketsCopyThreshold;#define AFD_TPACKETS_COPY_THRESHOLD 512
extern PVOID AfdDiscardableCodeHandle;extern PKEVENT AfdLoaded;extern AFD_WORK_ITEM AfdUnloadWorker;extern BOOLEAN AfdVolatileConfig;extern HANDLE AfdParametersNotifyHandle;extern WORK_QUEUE_ITEM AfdParametersNotifyWorker;extern PKEVENT AfdParametersUnloadEvent;
//
// Various globals for SAN
//
extern HANDLE AfdSanCodeHandle;extern LIST_ENTRY AfdSanHelperList;extern PAFD_ENDPOINT AfdSanServiceHelper;extern HANDLE AfdSanServicePid;extern POBJECT_TYPE IoCompletionObjectType;extern LONG AfdSanProviderListSeqNum;
extern CLONG AfdReceiveWindowSize;#define AFD_LM_DEFAULT_RECEIVE_WINDOW 8192
#define AFD_MM_DEFAULT_RECEIVE_WINDOW 8192
#define AFD_SM_DEFAULT_RECEIVE_WINDOW 4096
extern CLONG AfdSendWindowSize;#define AFD_LM_DEFAULT_SEND_WINDOW 8192
#define AFD_MM_DEFAULT_SEND_WINDOW 8192
#define AFD_SM_DEFAULT_SEND_WINDOW 4096
extern CLONG AfdBufferMultiplier;#define AFD_DEFAULT_BUFFER_MULTIPLIER 4
extern CLONG AfdTransmitIoLength;#define AFD_LM_DEFAULT_TRANSMIT_IO_LENGTH 65536
#define AFD_MM_DEFAULT_TRANSMIT_IO_LENGTH (PAGE_SIZE*2)
#define AFD_SM_DEFAULT_TRANSMIT_IO_LENGTH PAGE_SIZE
extern CLONG AfdMaxFastTransmit;#define AFD_DEFAULT_MAX_FAST_TRANSMIT 65536
extern CLONG AfdMaxFastCopyTransmit;#define AFD_DEFAULT_MAX_FAST_COPY_TRANSMIT 128
extern ULONG AfdEndpointsOpened;extern ULONG AfdEndpointsCleanedUp;extern ULONG AfdEndpointsClosed;#define AFD_ENDPOINTS_FREEING_MAX 10
extern ULONG AfdEndpointsFreeing;#define AFD_CONNECTIONS_FREEING_MAX 10
extern ULONG AfdConnectionsFreeing;
extern BOOLEAN AfdIgnorePushBitOnReceives;
extern BOOLEAN AfdEnableDynamicBacklog;#define AFD_DEFAULT_ENABLE_DYNAMIC_BACKLOG FALSE
extern LONG AfdMinimumDynamicBacklog;#define AFD_DEFAULT_MINIMUM_DYNAMIC_BACKLOG 0
extern LONG AfdMaximumDynamicBacklog;#define AFD_DEFAULT_MAXIMUM_DYNAMIC_BACKLOG 0
extern LONG AfdDynamicBacklogGrowthDelta;#define AFD_DEFAULT_DYNAMIC_BACKLOG_GROWTH_DELTA 0
// Maximum number of free connections that we keep
// on listening endpoint. This is not the same as a backlog,
// it is just a policy on connection object reuse via AcceptEx
// We stop reusing if we have that many free objects in the list
// Currently the main reason for this limit is the ability to use the
// SLists which have USHORT for item count.
#define AFD_MAXIMUM_FREE_CONNECTIONS 32767
//
// These are limits on backlog in AFD_START_LISTEN
// Application can work around this limit by posting AcceptEx(-s)
//
#define AFD_MAXIMUM_BACKLOG_NTS 200
#define AFD_MAXIMUM_BACKLOG_NTW 5
#define AFD_MINIMUM_BACKLOG 1
extern BOOLEAN AfdDisableRawSecurity;extern PSECURITY_DESCRIPTOR AfdAdminSecurityDescriptor;extern BOOLEAN AfdDontShareAddresses;extern BOOLEAN AfdDisableDirectSuperAccept;extern BOOLEAN AfdDisableChainedReceive;#ifdef TDI_SERVICE_SEND_AND_DISCONNECT
extern BOOLEAN AfdUseTdiSendAndDisconnect;#endif //TDI_SERVICE_SEND_AND_DISCONNECT
#define AFD_MINIMUM_TPINFO_ELEMENT_COUNT 3 // For transmit file compatibility.
extern ULONG AfdDefaultTpInfoElementCount;//
// Data for transport address lists and queued change queries
//
extern HANDLE AfdBindingHandle;extern LIST_ENTRY AfdAddressEntryList;extern LIST_ENTRY AfdAddressChangeList;extern PERESOURCE AfdAddressListLock;extern AFD_QSPIN_LOCK AfdAddressChangeLock;extern AFD_WORK_ITEM AfdPnPDeregisterWorker;
extern IO_STATUS_BLOCK AfdDontCareIoStatus;// Holds TDI connect timeout (-1).
extern const LARGE_INTEGER AfdInfiniteTimeout;
extern SLIST_HEADER AfdLRList;
extern KDPC AfdLRListDpc;extern KTIMER AfdLRListTimer;extern AFD_WORK_ITEM AfdLRListWorker;extern LONG AfdLRListCount;extern SLIST_HEADER AfdLRFileMdlList;extern AFD_LR_LIST_ITEM AfdLRFileMdlListItem;
#if AFD_PERF_DBG
extern CLONG AfdFullReceiveIndications;extern CLONG AfdPartialReceiveIndications;
extern CLONG AfdFullReceiveDatagramIndications;extern CLONG AfdPartialReceiveDatagramIndications;
extern CLONG AfdFastSendsSucceeded;extern CLONG AfdFastSendsFailed;extern CLONG AfdFastReceivesSucceeded;extern CLONG AfdFastReceivesFailed;
extern CLONG AfdFastSendDatagramsSucceeded;extern CLONG AfdFastSendDatagramsFailed;extern CLONG AfdFastReceiveDatagramsSucceeded;extern CLONG AfdFastReceiveDatagramsFailed;
extern CLONG AfdFastReadsSucceeded;extern CLONG AfdFastReadsFailed;extern CLONG AfdFastWritesSucceeded;extern CLONG AfdFastWritesFailed;
extern CLONG AfdFastTfSucceeded;extern CLONG AfdFastTfFailed;extern CLONG AfdFastTfReadFailed;
extern CLONG AfdTPWorkersExecuted;extern CLONG AfdTPRequests;
extern BOOLEAN AfdDisableFastIo;extern BOOLEAN AfdDisableConnectionReuse;
#endif // if AFD_PERF_DBG
#if AFD_KEEP_STATS
extern AFD_QUOTA_STATS AfdQuotaStats;extern AFD_HANDLE_STATS AfdHandleStats;extern AFD_QUEUE_STATS AfdQueueStats;extern AFD_CONNECTION_STATS AfdConnectionStats;
#endif // if AFD_KEEP_STATS
#if DBG
extern BOOLEAN AfdUsePrivateAssert;#endif
#ifdef _WIN64
extern QOS32 AfdDefaultQos32;#endif
extern QOS AfdDefaultQos;
ULONG AfdIoctlTable[AFD_NUM_IOCTLS];PAFD_IMMEDIATE_CALL AfdImmediateCallDispatch[AFD_NUM_IOCTLS];PAFD_IRP_CALL AfdIrpCallDispatch[AFD_NUM_IOCTLS];
#define AFD_FAST_CONNECT_DATA_SIZE 256
#endif // ndef _AFDDATA_
|
