/*++ 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_