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windows-server-2003/net/sockets/winsock2/wsp/afdsys/afddata.h

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  1. /*++
  3. Copyright (c) 1989 Microsoft Corporation
  5. Module Name:
  7. afddata.h
  9. Abstract:
  11. This module declares global data for AFD.
  13. Author:
  15. David Treadwell (davidtr) 21-Feb-1992
  17. Revision History:
  18. Vadim Eydelman (vadime)
  19. 1998-1999 NT5.0 optimizations
  21. --*/
  23. #ifndef _AFDDATA_
  24. #define _AFDDATA_
  26. extern PDEVICE_OBJECT AfdDeviceObject;
  29. extern LIST_ENTRY AfdEndpointListHead;
  30. extern LIST_ENTRY AfdConstrainedEndpointListHead;
  32. extern LIST_ENTRY AfdPollListHead;
  33. extern AFD_QSPIN_LOCK AfdPollListLock;
  35. extern LIST_ENTRY AfdTransportInfoListHead;
  36. extern KEVENT AfdContextWaitEvent;
  37. #define AFD_CONTEXT_BUSY ((PVOID)-1)
  38. #define AFD_CONTEXT_WAITING ((PVOID)-2)
  40. extern PKPROCESS AfdSystemProcess;
  41. extern FAST_IO_DISPATCH AfdFastIoDispatch;
  43. //
  44. // Global data which must always be in nonpaged pool,
  45. // even when the driver is paged out (resource, lookaside lists).
  46. //
  47. PAFD_GLOBAL_DATA AfdGlobalData;
  48. #define AfdResource (&AfdGlobalData->Resource)
  49. #define AfdLookasideLists (AfdGlobalData)
  50. #define AfdAlignmentTable (AfdGlobalData->BufferAlignmentTable)
  52. //
  53. // Globals for dealing with AFD's executive worker thread.
  54. //
  56. extern LIST_ENTRY AfdWorkQueueListHead;
  57. extern BOOLEAN AfdWorkThreadRunning;
  58. extern PIO_WORKITEM AfdWorkQueueItem;
  60. //
  61. // Globals to track the buffers used by AFD.
  62. //
  64. extern ULONG AfdLargeBufferListDepth;
  65. #define AFD_SM_DEFAULT_LARGE_LIST_DEPTH 0
  66. #define AFD_MM_DEFAULT_LARGE_LIST_DEPTH 2
  67. #define AFD_LM_DEFAULT_LARGE_LIST_DEPTH 10
  69. extern ULONG AfdMediumBufferListDepth;
  70. #define AFD_SM_DEFAULT_MEDIUM_LIST_DEPTH 4
  71. #define AFD_MM_DEFAULT_MEDIUM_LIST_DEPTH 8
  72. #define AFD_LM_DEFAULT_MEDIUM_LIST_DEPTH 24
  74. extern ULONG AfdSmallBufferListDepth;
  75. #define AFD_SM_DEFAULT_SMALL_LIST_DEPTH 8
  76. #define AFD_MM_DEFAULT_SMALL_LIST_DEPTH 16
  77. #define AFD_LM_DEFAULT_SMALL_LIST_DEPTH 32
  79. extern ULONG AfdBufferTagListDepth;
  80. #define AFD_SM_DEFAULT_TAG_LIST_DEPTH 16
  81. #define AFD_MM_DEFAULT_TAG_LIST_DEPTH 32
  82. #define AFD_LM_DEFAULT_TAG_LIST_DEPTH 64
  84. extern ULONG AfdLargeBufferSize;
  85. // default value is AfdBufferLengthForOnePage
  87. extern ULONG AfdMediumBufferSize;
  88. #define AFD_DEFAULT_MEDIUM_BUFFER_SIZE 1504
  90. extern ULONG AfdSmallBufferSize;
  91. #define AFD_DEFAULT_SMALL_BUFFER_SIZE 128
  93. extern ULONG AfdBufferTagSize;
  94. #define AFD_DEFAULT_TAG_BUFFER_SIZE 0
  96. extern ULONG AfdStandardAddressLength;
  97. #define AFD_DEFAULT_STD_ADDRESS_LENGTH sizeof(TA_IP_ADDRESS)
  99. extern ULONG AfdBufferLengthForOnePage;
  100. extern ULONG AfdBufferAlignment;
  101. #define AFD_MINIMUM_BUFFER_ALIGNMENT \
  102. max(TYPE_ALIGNMENT(TRANSPORT_ADDRESS), \
  103. max(TYPE_ALIGNMENT(KAPC), \
  104. max(TYPE_ALIGNMENT(WORK_QUEUE_ITEM), \
  105. max(TYPE_ALIGNMENT(AFD_BUFFER), \
  106. max(TYPE_ALIGNMENT(MDL), \
  107. max(TYPE_ALIGNMENT(IRP), \
  108. MEMORY_ALLOCATION_ALIGNMENT))))))
  110. extern ULONG AfdAlignmentTableSize;
  111. extern ULONG AfdAlignmentOverhead;
  112. extern ULONG AfdBufferOverhead;
  114. //
  115. // Globals for tuning TransmitFile().
  116. //
  118. extern LIST_ENTRY AfdQueuedTransmitFileListHead;
  119. extern AFD_QSPIN_LOCK AfdQueuedTransmitFileSpinLock;
  120. extern ULONG AfdActiveTransmitFileCount;
  121. extern ULONG AfdMaxActiveTransmitFileCount;
  122. #define AFD_DEFAULT_MAX_ACTIVE_TRANSMIT_FILE_COUNT 2
  124. extern ULONG AfdDefaultTransmitWorker;
  125. #define AFD_DEFAULT_TRANSMIT_WORKER AFD_TF_USE_SYSTEM_THREAD
  127. #define AFD_MAX_FAST_TRANSPORT_ADDRESS sizeof (TA_IP6_ADDRESS)
  128. //
  129. // Various pieces of configuration information, with default values.
  130. //
  132. extern CCHAR AfdIrpStackSize;
  133. extern CCHAR AfdTdiStackSize;
  134. #ifdef _AFD_VARIABLE_STACK_
  135. extern CCHAR AfdMaxStackSize;
  136. #endif // _AFD_VARIABLE_STACK_
  137. #define AFD_DEFAULT_IRP_STACK_SIZE 4
  139. extern CCHAR AfdPriorityBoost;
  140. #define AFD_DEFAULT_PRIORITY_BOOST 2
  142. extern ULONG AfdBlockingSendCopyThreshold;
  143. #define AFD_BLOCKING_SEND_COPY_THRESHOLD 65536
  144. extern ULONG AfdFastSendDatagramThreshold;
  145. #define AFD_FAST_SEND_DATAGRAM_THRESHOLD 1024
  146. extern ULONG AfdTPacketsCopyThreshold;
  147. #define AFD_TPACKETS_COPY_THRESHOLD AFD_DEFAULT_MEDIUM_BUFFER_SIZE
  149. extern PVOID AfdDiscardableCodeHandle;
  150. extern PKEVENT AfdLoaded;
  151. extern AFD_WORK_ITEM AfdUnloadWorker;
  152. extern BOOLEAN AfdVolatileConfig;
  153. extern HANDLE AfdParametersNotifyHandle;
  154. extern WORK_QUEUE_ITEM AfdParametersNotifyWorker;
  155. extern PKEVENT AfdParametersUnloadEvent;
  157. //
  158. // Various globals for SAN
  159. //
  160. extern HANDLE AfdSanCodeHandle;
  161. extern LIST_ENTRY AfdSanHelperList;
  162. extern PAFD_ENDPOINT AfdSanServiceHelper;
  163. extern HANDLE AfdSanServicePid;
  164. extern POBJECT_TYPE IoCompletionObjectType;
  165. extern LONG AfdSanProviderListSeqNum;
  167. extern ULONG AfdReceiveWindowSize;
  168. #define AFD_LM_DEFAULT_RECEIVE_WINDOW 8192
  169. #define AFD_MM_DEFAULT_RECEIVE_WINDOW 8192
  170. #define AFD_SM_DEFAULT_RECEIVE_WINDOW 4096
  172. extern ULONG AfdSendWindowSize;
  173. #define AFD_LM_DEFAULT_SEND_WINDOW 8192
  174. #define AFD_MM_DEFAULT_SEND_WINDOW 8192
  175. #define AFD_SM_DEFAULT_SEND_WINDOW 4096
  177. extern ULONG AfdBufferMultiplier;
  178. #define AFD_DEFAULT_BUFFER_MULTIPLIER 4
  180. extern ULONG AfdTransmitIoLength;
  181. #define AFD_LM_DEFAULT_TRANSMIT_IO_LENGTH 65536
  182. #define AFD_MM_DEFAULT_TRANSMIT_IO_LENGTH (PAGE_SIZE*2)
  183. #define AFD_SM_DEFAULT_TRANSMIT_IO_LENGTH PAGE_SIZE
  185. extern ULONG AfdMaxFastTransmit;
  186. #define AFD_DEFAULT_MAX_FAST_TRANSMIT 65536
  187. extern ULONG AfdMaxFastCopyTransmit;
  188. #define AFD_DEFAULT_MAX_FAST_COPY_TRANSMIT 128
  190. extern LONG AfdEndpointsOpened;
  191. extern LONG AfdEndpointsCleanedUp;
  192. extern LONG AfdEndpointsClosed;
  193. #define AFD_ENDPOINTS_FREEING_MAX 10
  194. extern LONG AfdEndpointsFreeing;
  195. #define AFD_CONNECTIONS_FREEING_MAX 10
  196. extern LONG AfdConnectionsFreeing;
  198. extern BOOLEAN AfdIgnorePushBitOnReceives;
  200. extern BOOLEAN AfdEnableDynamicBacklog;
  201. #define AFD_DEFAULT_ENABLE_DYNAMIC_BACKLOG FALSE
  203. extern LONG AfdMinimumDynamicBacklog;
  204. #define AFD_DEFAULT_MINIMUM_DYNAMIC_BACKLOG 0
  206. extern LONG AfdMaximumDynamicBacklog;
  207. #define AFD_DEFAULT_MAXIMUM_DYNAMIC_BACKLOG 0
  209. extern LONG AfdDynamicBacklogGrowthDelta;
  210. #define AFD_DEFAULT_DYNAMIC_BACKLOG_GROWTH_DELTA 0
  212. // Maximum number of free connections that we keep
  213. // on listening endpoint. This is not the same as a backlog,
  214. // it is just a policy on connection object reuse via AcceptEx
  215. // We stop reusing if we have that many free objects in the list
  216. // Currently the main reason for this limit is the ability to use the
  217. // SLists which have USHORT for item count.
  218. #define AFD_MAXIMUM_FREE_CONNECTIONS 32767
  220. //
  221. // These are limits on backlog in AFD_START_LISTEN
  222. // Application can work around this limit by posting AcceptEx(-s)
  223. //
  224. #define AFD_MAXIMUM_BACKLOG_NTS 200
  225. #define AFD_MAXIMUM_BACKLOG_NTW 5
  226. #define AFD_MINIMUM_BACKLOG 1
  228. extern BOOLEAN AfdDisableRawSecurity;
  229. extern PSECURITY_DESCRIPTOR AfdAdminSecurityDescriptor;
  230. extern SECURITY_DESCRIPTOR AfdEmptySd;
  232. extern BOOLEAN AfdDisableDirectSuperAccept;
  233. extern BOOLEAN AfdDisableChainedReceive;
  234. #ifdef TDI_SERVICE_SEND_AND_DISCONNECT
  235. extern BOOLEAN AfdUseTdiSendAndDisconnect;
  236. #endif //TDI_SERVICE_SEND_AND_DISCONNECT
  238. #define AFD_MINIMUM_TPINFO_ELEMENT_COUNT 3 // For transmit file compatibility.
  239. extern ULONG AfdDefaultTpInfoElementCount;
  240. //
  241. // Data for transport address lists and queued change queries
  242. //
  243. extern HANDLE AfdBindingHandle;
  244. extern LIST_ENTRY AfdAddressEntryList;
  245. extern LIST_ENTRY AfdAddressChangeList;
  246. extern PERESOURCE AfdAddressListLock;
  247. extern AFD_QSPIN_LOCK AfdAddressChangeLock;
  248. extern PERESOURCE AfdTdiPnPHandlerLock;
  249. extern AFD_WORK_ITEM AfdPnPDeregisterWorker;
  252. extern IO_STATUS_BLOCK AfdDontCareIoStatus;
  253. // Holds TDI connect timeout (-1).
  254. extern const LARGE_INTEGER AfdInfiniteTimeout;
  259. extern SLIST_HEADER AfdLRList;
  261. extern KDPC AfdLRListDpc;
  262. extern KTIMER AfdLRListTimer;
  263. extern AFD_WORK_ITEM AfdLRListWorker;
  264. extern LONG AfdLRListCount;
  265. extern SLIST_HEADER AfdLRFileMdlList;
  266. extern AFD_LR_LIST_ITEM AfdLRFileMdlListItem;
  269. #if AFD_PERF_DBG
  271. extern LONG AfdFullReceiveIndications;
  272. extern LONG AfdPartialReceiveIndications;
  274. extern LONG AfdFullReceiveDatagramIndications;
  275. extern LONG AfdPartialReceiveDatagramIndications;
  277. extern LONG AfdFastSendsSucceeded;
  278. extern LONG AfdFastSendsFailed;
  279. extern LONG AfdFastReceivesSucceeded;
  280. extern LONG AfdFastReceivesFailed;
  282. extern LONG AfdFastSendDatagramsSucceeded;
  283. extern LONG AfdFastSendDatagramsFailed;
  284. extern LONG AfdFastReceiveDatagramsSucceeded;
  285. extern LONG AfdFastReceiveDatagramsFailed;
  287. extern LONG AfdFastReadsSucceeded;
  288. extern LONG AfdFastReadsFailed;
  289. extern LONG AfdFastWritesSucceeded;
  290. extern LONG AfdFastWritesFailed;
  292. extern LONG AfdFastTfSucceeded;
  293. extern LONG AfdFastTfFailed;
  294. extern LONG AfdFastTfReadFailed;
  296. extern LONG AfdTPWorkersExecuted;
  297. extern LONG AfdTPRequests;
  299. extern BOOLEAN AfdDisableFastIo;
  300. extern BOOLEAN AfdDisableConnectionReuse;
  302. #endif // if AFD_PERF_DBG
  304. #if AFD_KEEP_STATS
  306. extern AFD_QUOTA_STATS AfdQuotaStats;
  307. extern AFD_HANDLE_STATS AfdHandleStats;
  308. extern AFD_QUEUE_STATS AfdQueueStats;
  309. extern AFD_CONNECTION_STATS AfdConnectionStats;
  311. #endif // if AFD_KEEP_STATS
  313. #if DBG
  314. extern BOOLEAN AfdUsePrivateAssert;
  315. #endif
  317. #ifdef _WIN64
  318. extern QOS32 AfdDefaultQos32;
  319. #endif
  320. extern QOS AfdDefaultQos;
  322. ULONG AfdIoctlTable[AFD_NUM_IOCTLS];
  323. PAFD_IMMEDIATE_CALL AfdImmediateCallDispatch[AFD_NUM_IOCTLS];
  324. PAFD_IRP_CALL AfdIrpCallDispatch[AFD_NUM_IOCTLS];
  327. #define AFD_FAST_CONNECT_DATA_SIZE 256
  328. #endif // ndef _AFDDATA_