441 lines
8.7 KiB
C
441 lines
8.7 KiB
C
/*++
|
||
|
||
Copyright (c) 1990 Microsoft Corporation
|
||
|
||
Module Name:
|
||
|
||
pend.c
|
||
|
||
Abstract:
|
||
|
||
Multicast and filter functions for the NDIS 3.0 Etherlink II driver.
|
||
|
||
Author:
|
||
|
||
Adam Barr (adamba) 30-Jul-1990
|
||
Aaron Ogus (aarono) 27-Sep-1991
|
||
|
||
Environment:
|
||
|
||
Kernel mode, FSD
|
||
|
||
Revision History:
|
||
|
||
|
||
Aaron Ogus (aarono) 27-Sep-1991
|
||
Changes to NdisRequest() format required changes to pending operations
|
||
Sean Selitrennikoff (seanse) Dec-1991
|
||
Changes to meet standard model for NDIS drivers.
|
||
|
||
--*/
|
||
|
||
#include <ndis.h>
|
||
#include <efilter.h>
|
||
#include "elnkhrd.h"
|
||
#include "elnksft.h"
|
||
|
||
|
||
VOID
|
||
HandlePendingOperations(
|
||
IN PVOID SystemSpecific1,
|
||
IN PVOID DeferredContext, // will be a pointer to the adapter block
|
||
IN PVOID SystemSpecific2,
|
||
IN PVOID SystemSpecific3
|
||
)
|
||
|
||
/*++
|
||
|
||
Routine Description:
|
||
|
||
Called by pending functions to process elements on the
|
||
pending queue.
|
||
|
||
Arguments:
|
||
|
||
DeferredContext - will be a pointer to the adapter block
|
||
|
||
Return Value:
|
||
|
||
None.
|
||
|
||
--*/
|
||
|
||
{
|
||
PELNKII_ADAPTER AdaptP = ((PELNKII_ADAPTER)DeferredContext);
|
||
PELNKII_PEND_DATA PendOp;
|
||
PELNKII_OPEN TmpOpen;
|
||
NDIS_STATUS Status;
|
||
|
||
UNREFERENCED_PARAMETER(SystemSpecific1);
|
||
UNREFERENCED_PARAMETER(SystemSpecific2);
|
||
UNREFERENCED_PARAMETER(SystemSpecific3);
|
||
|
||
NdisAcquireSpinLock(&AdaptP->Lock);
|
||
|
||
AdaptP->References++;
|
||
|
||
//
|
||
// If an operation is being dispatched or a reset is running, exit.
|
||
//
|
||
|
||
if ((!AdaptP->ResetInProgress) && (AdaptP->PendOp == NULL)) {
|
||
|
||
for (;;) {
|
||
|
||
//
|
||
// We hold SpinLock here.
|
||
//
|
||
|
||
if (AdaptP->PendQueue != NULL) {
|
||
|
||
//
|
||
// Take the request off the queue and dispatch it.
|
||
//
|
||
|
||
PendOp = AdaptP->PendQueue;
|
||
|
||
AdaptP->PendQueue = PendOp->Next;
|
||
|
||
if (PendOp == AdaptP->PendQTail) {
|
||
|
||
AdaptP->PendQTail = NULL;
|
||
|
||
}
|
||
|
||
AdaptP->PendOp = PendOp;
|
||
|
||
NdisReleaseSpinLock(&AdaptP->Lock);
|
||
|
||
Status = ((PendOp->RequestType == NdisRequestClose) ||
|
||
(PendOp->RequestType == NdisRequestGeneric3)) ?
|
||
DispatchSetMulticastAddressList(AdaptP) :
|
||
DispatchSetPacketFilter(AdaptP);
|
||
|
||
TmpOpen = PendOp->Open;
|
||
|
||
if ((PendOp->RequestType != NdisRequestGeneric1) &&
|
||
(PendOp->RequestType != NdisRequestClose)) { // Close Adapter
|
||
|
||
|
||
//
|
||
// Complete it since it previously pended.
|
||
//
|
||
|
||
NdisCompleteRequest(PendOp->Open->NdisBindingContext,
|
||
PNDIS_REQUEST_FROM_PELNKII_PEND_DATA(PendOp),
|
||
Status);
|
||
|
||
}
|
||
|
||
//
|
||
// This will call CompleteClose if necessary.
|
||
//
|
||
|
||
NdisAcquireSpinLock(&AdaptP->Lock);
|
||
|
||
TmpOpen->ReferenceCount--;
|
||
|
||
if (AdaptP->ResetInProgress) {
|
||
|
||
//
|
||
// We have to stop processing requests.
|
||
//
|
||
|
||
break; // jump to BREAK_LOCATION
|
||
}
|
||
|
||
} else {
|
||
|
||
break; // jump to BREAK_LOCATION
|
||
|
||
}
|
||
}
|
||
|
||
//
|
||
// BREAK_LOCATION
|
||
//
|
||
// Hold Lock here.
|
||
//
|
||
|
||
AdaptP->PendOp = NULL;
|
||
|
||
if (AdaptP->ResetInProgress) {
|
||
|
||
//
|
||
// Exited due to a reset, indicate that the DPC
|
||
// handler is done for now.
|
||
//
|
||
|
||
AdaptP->References--;
|
||
|
||
NdisReleaseSpinLock(&AdaptP->Lock);
|
||
|
||
ElnkiiResetStageDone(AdaptP, MULTICAST_RESET);
|
||
|
||
return;
|
||
}
|
||
|
||
}
|
||
|
||
if (AdaptP->CloseQueue != NULL) {
|
||
|
||
PELNKII_OPEN OpenP;
|
||
PELNKII_OPEN TmpOpenP;
|
||
PELNKII_OPEN PrevOpenP;
|
||
|
||
//
|
||
// Check for an open that may have closed
|
||
//
|
||
|
||
OpenP = AdaptP->CloseQueue;
|
||
PrevOpenP = NULL;
|
||
|
||
while (OpenP != NULL) {
|
||
|
||
if (OpenP->ReferenceCount > 0) {
|
||
|
||
OpenP = OpenP->NextOpen;
|
||
PrevOpenP = OpenP;
|
||
|
||
continue;
|
||
|
||
}
|
||
|
||
#if DBG
|
||
|
||
if (!OpenP->Closing) {
|
||
|
||
DbgPrint("BAD CLOSE: %d\n", OpenP->ReferenceCount);
|
||
|
||
DbgBreakPoint();
|
||
|
||
OpenP = OpenP->NextOpen;
|
||
PrevOpenP = OpenP;
|
||
|
||
continue;
|
||
|
||
}
|
||
|
||
#endif
|
||
|
||
|
||
//
|
||
// The last reference is completed; a previous call to ElnkiiCloseAdapter
|
||
// will have returned NDIS_STATUS_PENDING, so things must be finished
|
||
// off now.
|
||
//
|
||
|
||
//
|
||
// Check if MaxLookAhead needs adjusting.
|
||
//
|
||
|
||
if (OpenP->LookAhead == AdaptP->MaxLookAhead) {
|
||
|
||
ElnkiiAdjustMaxLookAhead(AdaptP);
|
||
|
||
}
|
||
|
||
NdisReleaseSpinLock(&AdaptP->Lock);
|
||
|
||
NdisCompleteCloseAdapter (OpenP->NdisBindingContext, NDIS_STATUS_SUCCESS);
|
||
|
||
NdisAcquireSpinLock(&AdaptP->Lock);
|
||
|
||
//
|
||
// Remove from close list
|
||
//
|
||
|
||
if (PrevOpenP != NULL) {
|
||
|
||
PrevOpenP->NextOpen = OpenP->NextOpen;
|
||
|
||
} else {
|
||
|
||
AdaptP->CloseQueue = OpenP->NextOpen;
|
||
}
|
||
|
||
//
|
||
// Go to next one
|
||
//
|
||
|
||
TmpOpenP = OpenP;
|
||
OpenP = OpenP->NextOpen;
|
||
|
||
NdisFreeMemory(TmpOpenP, sizeof(ELNKII_OPEN), 0);
|
||
|
||
}
|
||
|
||
if ((AdaptP->CloseQueue == NULL) && (AdaptP->OpenQueue == NULL)) {
|
||
|
||
//
|
||
// We can stop the card.
|
||
//
|
||
|
||
CardStop(AdaptP);
|
||
|
||
}
|
||
|
||
}
|
||
|
||
ELNKII_DO_DEFERRED(AdaptP);
|
||
|
||
}
|
||
|
||
NDIS_STATUS
|
||
DispatchSetPacketFilter(
|
||
IN PELNKII_ADAPTER AdaptP
|
||
)
|
||
|
||
/*++
|
||
|
||
Routine Description:
|
||
|
||
Sets the appropriate bits in the adapter filters
|
||
and modifies the card Receive Configuration Register if needed.
|
||
|
||
Arguments:
|
||
|
||
AdaptP - Pointer to the adapter block
|
||
|
||
Return Value:
|
||
|
||
The final status (always NDIS_STATUS_SUCCESS).
|
||
|
||
Notes:
|
||
|
||
- Note that to receive all multicast packets the multicast
|
||
registers on the card must be filled with 1's. To be
|
||
promiscuous that must be done as well as setting the
|
||
promiscuous physical flag in the RCR. This must be done
|
||
as long as ANY protocol bound to this adapter has their
|
||
filter set accordingly.
|
||
|
||
--*/
|
||
|
||
|
||
{
|
||
UINT PacketFilter;
|
||
|
||
PacketFilter = ETH_QUERY_FILTER_CLASSES(AdaptP->FilterDB);
|
||
|
||
//
|
||
// See what has to be put on the card.
|
||
//
|
||
|
||
if (PacketFilter & (NDIS_PACKET_TYPE_ALL_MULTICAST | NDIS_PACKET_TYPE_PROMISCUOUS)) {
|
||
|
||
//
|
||
// need "all multicast" now.
|
||
//
|
||
|
||
CardSetAllMulticast(AdaptP); // fills it with 1's
|
||
|
||
} else {
|
||
|
||
//
|
||
// No longer need "all multicast".
|
||
//
|
||
|
||
DispatchSetMulticastAddressList(AdaptP);
|
||
|
||
}
|
||
|
||
|
||
//
|
||
// The multicast bit in the RCR should be on if ANY protocol wants
|
||
// multicast/all multicast packets (or is promiscuous).
|
||
//
|
||
|
||
if (PacketFilter & (NDIS_PACKET_TYPE_ALL_MULTICAST |
|
||
NDIS_PACKET_TYPE_MULTICAST |
|
||
NDIS_PACKET_TYPE_PROMISCUOUS)) {
|
||
|
||
AdaptP->NicReceiveConfig |= RCR_MULTICAST;
|
||
|
||
} else {
|
||
|
||
AdaptP->NicReceiveConfig &= ~RCR_MULTICAST;
|
||
|
||
}
|
||
|
||
|
||
//
|
||
// The promiscuous physical bit in the RCR should be on if ANY
|
||
// protocol wants to be promiscuous.
|
||
//
|
||
|
||
if (PacketFilter & NDIS_PACKET_TYPE_PROMISCUOUS) {
|
||
|
||
AdaptP->NicReceiveConfig |= RCR_ALL_PHYS;
|
||
|
||
} else {
|
||
|
||
AdaptP->NicReceiveConfig &= ~RCR_ALL_PHYS;
|
||
|
||
}
|
||
|
||
|
||
//
|
||
// The broadcast bit in the RCR should be on if ANY protocol wants
|
||
// broadcast packets (or is promiscuous).
|
||
//
|
||
|
||
if (PacketFilter & (NDIS_PACKET_TYPE_BROADCAST | NDIS_PACKET_TYPE_PROMISCUOUS)) {
|
||
|
||
AdaptP->NicReceiveConfig |= RCR_BROADCAST;
|
||
|
||
} else {
|
||
|
||
AdaptP->NicReceiveConfig &= ~RCR_BROADCAST;
|
||
|
||
}
|
||
|
||
|
||
CardSetReceiveConfig(AdaptP);
|
||
|
||
return NDIS_STATUS_SUCCESS;
|
||
}
|
||
|
||
|
||
|
||
NDIS_STATUS
|
||
DispatchSetMulticastAddressList(
|
||
IN PELNKII_ADAPTER AdaptP
|
||
)
|
||
|
||
/*++
|
||
|
||
Routine Description:
|
||
|
||
Sets the multicast list for this open
|
||
|
||
Arguments:
|
||
|
||
AdaptP - Pointer to the adapter block
|
||
|
||
Return Value:
|
||
|
||
Implementation Note:
|
||
|
||
When invoked, we are to make it so that the multicast list in the filter
|
||
package becomes the multicast list for the adapter. To do this, we
|
||
determine the required contents of the NIC multicast registers and
|
||
update them.
|
||
|
||
|
||
--*/
|
||
{
|
||
|
||
//
|
||
// Update the local copy of the NIC multicast regs and copy them to the NIC
|
||
//
|
||
|
||
CardFillMulticastRegs(AdaptP);
|
||
|
||
CardCopyMulticastRegs(AdaptP);
|
||
|
||
return NDIS_STATUS_SUCCESS;
|
||
}
|
||
|
||
|