263 lines
7.0 KiB
C
263 lines
7.0 KiB
C
/*++
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Copyright (c) 1989-1993 Microsoft Corporation
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Module Name:
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spxsend.c
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Abstract:
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This module contains code that implements the send engine for the
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SPX transport provider.
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Author:
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Nikhil Kamkolkar (nikhilk) 11-November-1993
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Environment:
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Kernel mode
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Revision History:
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--*/
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#include "precomp.h"
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#pragma hdrstop
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// Define module number for event logging entries
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#define FILENUM SPXSEND
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VOID
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SpxSendComplete(
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IN PNDIS_PACKET pNdisPkt,
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IN NDIS_STATUS NdisStatus
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)
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/*++
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Routine Description:
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This routine is called by the I/O system to indicate that a connection-
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oriented packet has been shipped and is no longer needed by the Physical
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Provider.
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Arguments:
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ProtocolBindingContext - The ADAPTER structure for this binding.
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NdisPacket/RequestHandle - A pointer to the NDIS_PACKET that we sent.
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NdisStatus - the completion status of the send.
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Return Value:
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none.
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--*/
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{
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PSPX_CONN_FILE pSpxConnFile;
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PSPX_SEND_RESD pSendResd;
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PNDIS_BUFFER pNdisBuffer;
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CTELockHandle lockHandle;
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UINT bufCount;
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PREQUEST pRequest = NULL;
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BOOLEAN completeReq = FALSE, freePkt = FALSE,
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orphaned = FALSE, lockHeld = FALSE;
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pSendResd = (PSPX_SEND_RESD)(pNdisPkt->ProtocolReserved);
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#if DBG
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if (NdisStatus != NDIS_STATUS_SUCCESS)
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{
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DBGPRINT(SEND, DBG,
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("SpxSendComplete: For %lx with status **%lx**\n",
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pNdisPkt, NdisStatus));
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}
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#endif
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// IPX changes the length set for the first ndis buffer descriptor.
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// Change it back to its original value here.
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NdisQueryPacket(pNdisPkt, NULL, &bufCount, &pNdisBuffer, NULL);
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NdisAdjustBufferLength(pNdisBuffer, IpxMacHdrNeeded + MIN_IPXSPX2_HDRSIZE);
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do
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{
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pSpxConnFile = pSendResd->sr_ConnFile;
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CTEGetLock(&pSpxConnFile->scf_Lock, &lockHandle);
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lockHeld = TRUE;
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#if defined(__PNP)
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//
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// if IPX gave us a new LocalTarget, use for our next send.
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//
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// But if we are sending connect requests by iterating over NicIds,
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// dont update the local target bcoz that will mess up our iteration
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// logic.
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//
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if ( DEVICE_NETWORK_PATH_NOT_FOUND == NdisStatus
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&&
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!(
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SPX_CONN_CONNECTING(pSpxConnFile) &&
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(SPX_CONNECT_STATE(pSpxConnFile) == SPX_CONNECT_SENTREQ) &&
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(*((UNALIGNED ULONG *)(pSpxConnFile->scf_RemAddr)) == 0)
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) ) {
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pSpxConnFile->scf_LocalTarget = pSendResd->LocalTarget;
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//
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// Renegotiate the max packet size if we have an active SPX2
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// session going on and we negotiated the max size originally.
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//
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if ( SPX_MAIN_STATE(pSpxConnFile) == SPX_CONNFILE_ACTIVE &&
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SPX_CONN_FLAG(pSpxConnFile, SPX_CONNFILE_SPX2) &&
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SPX_CONN_FLAG(pSpxConnFile, SPX_CONNFILE_NEG) ) {
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//
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// this call will get the local max size on this new local target
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// from IPX.
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//
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SPX_MAX_PKT_SIZE(pSpxConnFile, TRUE, TRUE, *((UNALIGNED ULONG *)pSpxConnFile->scf_RemAddr );
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SPX_SEND_SETSTATE(pSpxConnFile, SPX_SEND_RENEG);
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DBGPRINT(SEND, DBG3,
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("SpxConnProcessAck: %lx CONNECTION ENTERING RENEG\n",
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pSpxConnFile));
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}
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}
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#endif __PNP
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CTEAssert((pSendResd->sr_State & SPX_SENDPKT_IPXOWNS) != 0);
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// IPX dont own this packet nomore.
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pSendResd->sr_State &= ~SPX_SENDPKT_IPXOWNS;
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// If a send packet has been aborted, then we need to call
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// abort send to go ahead and free up this packet, and deref associated
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// request, if there is one, potentially completing it.
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if ((pSendResd->sr_State & SPX_SENDPKT_ABORT) != 0)
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{
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spxConnAbortSendPkt(
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pSpxConnFile,
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pSendResd,
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SPX_CALL_TDILEVEL,
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lockHandle);
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lockHeld = FALSE;
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break;
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}
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// If there is an associated request, remove reference on it. BUT for a
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// sequenced packet only if it has been acked and is waiting for the request
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// to be dereferenced. It is already dequeued from queue, just free it up.
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if ((((pSendResd->sr_State & SPX_SENDPKT_REQ) != 0) &&
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((pSendResd->sr_State & SPX_SENDPKT_SEQ) == 0)) ||
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((pSendResd->sr_State & SPX_SENDPKT_ACKEDPKT) != 0))
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{
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freePkt = (BOOLEAN)((pSendResd->sr_State & SPX_SENDPKT_ACKEDPKT) != 0);
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pRequest = pSendResd->sr_Request;
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CTEAssert(pRequest != NULL);
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DBGPRINT(SEND, DBG,
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("IpxSendComplete: ReqRef before dec %lx.%lx\n",
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pRequest, REQUEST_INFORMATION(pRequest)));
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// Deref the request and see if we complete it now. We always have our
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// own reference on the request.
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// !!! Status should already have been set in request...!!!
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if (--(REQUEST_INFORMATION(pRequest)) == 0)
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{
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CTEAssert(REQUEST_STATUS(pRequest) != STATUS_PENDING);
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completeReq = TRUE;
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// If this is acked already, request is not on list.
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// BUG #11626
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if ((pSendResd->sr_State & SPX_SENDPKT_ACKEDPKT) == 0)
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{
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RemoveEntryList(REQUEST_LINKAGE(pRequest));
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}
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}
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}
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// Do we destroy this packet?
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if ((pSendResd->sr_State & SPX_SENDPKT_DESTROY) != 0)
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{
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// Remove this packet from the send list in the connection.
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DBGPRINT(SEND, INFO,
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("IpxSendComplete: destroy packet...\n"));
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SpxConnDequeueSendPktLock(pSpxConnFile, pNdisPkt);
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freePkt = TRUE;
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}
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} while (FALSE);
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if (lockHeld)
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{
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CTEFreeLock(&pSpxConnFile->scf_Lock, lockHandle);
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}
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if (freePkt)
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{
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DBGPRINT(SEND, INFO,
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("IpxSendComplete: free packet...\n"));
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SpxPktSendRelease(pNdisPkt);
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}
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if (completeReq)
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{
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// If this is a send request, set info to data sent, else it will be
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// zero.
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if (REQUEST_MINOR_FUNCTION(pRequest) == TDI_SEND)
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{
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PTDI_REQUEST_KERNEL_SEND pParam;
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pParam = (PTDI_REQUEST_KERNEL_SEND)
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REQUEST_PARAMETERS(pRequest);
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REQUEST_INFORMATION(pRequest) = pParam->SendLength;
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DBGPRINT(SEND, DBG,
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("IpxSendComplete: complete req %lx.%lx...\n",
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REQUEST_STATUS(pRequest),
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REQUEST_INFORMATION(pRequest)));
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CTEAssert(pRequest != NULL);
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CTEAssert(REQUEST_STATUS(pRequest) != STATUS_PENDING);
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SpxCompleteRequest(pRequest);
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}
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else
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{
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DBGPRINT(SEND, DBG,
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("SpxSendComplete: %lx DISC Request %lx with %lx.%lx\n",
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pSpxConnFile, pRequest, REQUEST_STATUS(pRequest),
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REQUEST_INFORMATION(pRequest)));
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DBGPRINT(SEND, DBG,
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("SpxSendComplete: %lx.%lx.%lx\n",
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pSpxConnFile->scf_RefCount,
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pSpxConnFile->scf_Flags,
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pSpxConnFile->scf_Flags2));
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// Set the request in the connection, and deref for it.
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InsertTailList(
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&pSpxConnFile->scf_DiscLinkage,
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REQUEST_LINKAGE(pRequest));
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}
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SpxConnFileDereference(pSpxConnFile, CFREF_VERIFY);
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}
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return;
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} // SpxSendComplete
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