NDIS_STATUS
HwInitializeScatterGatherDma(
__in PHW Hw,
__out NDIS_ERROR_CODE* ErrorCode,
__out PULONG ErrorValue
)
{
NDIS_STATUS ndisStatus;
NDIS_SG_DMA_DESCRIPTION DmaDescription;
do
{
NdisZeroMemory(&DmaDescription, sizeof(DmaDescription));
DmaDescription.Header.Type = NDIS_OBJECT_TYPE_SG_DMA_DESCRIPTION;
DmaDescription.Header.Revision = NDIS_SG_DMA_DESCRIPTION_REVISION_1;
DmaDescription.Header.Size = sizeof(NDIS_SG_DMA_DESCRIPTION);
DmaDescription.Flags = 0;
// The FCS does get DMA into OS buffers so we need to give extra space for that
DmaDescription.MaximumPhysicalMapping = HW11_MAX_FRAME_SIZE + 4;
// Send
DmaDescription.ProcessSGListHandler = HWProcessSGList;
// Receive
DmaDescription.SharedMemAllocateCompleteHandler = HWAllocateComplete;
ndisStatus = NdisMRegisterScatterGatherDma(
Hw->MiniportAdapterHandle,
&DmaDescription,
&Hw->MiniportDmaHandle
);
if (ndisStatus == NDIS_STATUS_SUCCESS)
{
Hw->TxInfo.ScatterGatherListSize = DmaDescription.ScatterGatherListSize;
}
else
{
MpTrace(COMP_SEND, DBG_SERIOUS, ("Failed to register SG DMA with NDIS\n"));
*ErrorCode = NDIS_ERROR_CODE_OUT_OF_RESOURCES;
*ErrorValue = ERRLOG_OUT_OF_SG_RESOURCES;
}
} while(FALSE);
return ndisStatus;
}
/**********************************************************
NDIS6-related final initialization:
Installing interrupt handler
Allocate buffer list pool
Parameters:
Return value:
***********************************************************/
NDIS_STATUS ParaNdis_FinishSpecificInitialization(PARANDIS_ADAPTER *pContext)
{
NDIS_STATUS status = NDIS_STATUS_SUCCESS;
NET_BUFFER_LIST_POOL_PARAMETERS PoolParams;
NDIS_MINIPORT_INTERRUPT_CHARACTERISTICS mic;
DEBUG_ENTRY(0);
NdisZeroMemory(&mic, sizeof(mic));
mic.Header.Type = NDIS_OBJECT_TYPE_MINIPORT_INTERRUPT;
mic.Header.Revision = NDIS_MINIPORT_INTERRUPT_REVISION_1;
mic.Header.Size = NDIS_SIZEOF_MINIPORT_INTERRUPT_CHARACTERISTICS_REVISION_1;
mic.DisableInterruptHandler = MiniportDisableInterruptEx;
mic.EnableInterruptHandler = MiniportEnableInterruptEx;
mic.InterruptDpcHandler = MiniportInterruptDPC;
mic.InterruptHandler = MiniportInterrupt;
if (pContext->bUsingMSIX)
{
mic.MsiSupported = TRUE;
mic.MsiSyncWithAllMessages = TRUE;
mic.EnableMessageInterruptHandler = MiniportEnableMSIInterrupt;
mic.DisableMessageInterruptHandler = MiniportDisableMSIInterrupt;
mic.MessageInterruptHandler = MiniportMSIInterrupt;
mic.MessageInterruptDpcHandler = MiniportMSIInterruptDpc;
}
PoolParams.Header.Type = NDIS_OBJECT_TYPE_DEFAULT;
PoolParams.Header.Size = sizeof(PoolParams);
PoolParams.Header.Revision = NET_BUFFER_LIST_POOL_PARAMETERS_REVISION_1;
PoolParams.ProtocolId = NDIS_PROTOCOL_ID_DEFAULT;
PoolParams.fAllocateNetBuffer = TRUE;
PoolParams.ContextSize = 0;
PoolParams.PoolTag = PARANDIS_MEMORY_TAG;
PoolParams.DataSize = 0;
pContext->BufferListsPool = NdisAllocateNetBufferListPool(pContext->MiniportHandle, &PoolParams);
if (!pContext->BufferListsPool)
{
status = NDIS_STATUS_RESOURCES;
}
if (status == NDIS_STATUS_SUCCESS)
{
status = NdisMRegisterInterruptEx(pContext->MiniportHandle, pContext, &mic, &pContext->InterruptHandle);
}
if (pContext->bUsingMSIX)
{
DPrintf(0, ("[%s] MSIX message table %savailable, count = %u\n", __FUNCTION__, (mic.MessageInfoTable == nullptr ? "not " : ""),
(mic.MessageInfoTable == nullptr ? 0 : mic.MessageInfoTable->MessageCount)));
}
else
{
DPrintf(0, ("[%s] Not using MSIX\n", __FUNCTION__));
}
if (status == NDIS_STATUS_SUCCESS)
{
NDIS_SG_DMA_DESCRIPTION sgDesc;
sgDesc.Header.Type = NDIS_OBJECT_TYPE_SG_DMA_DESCRIPTION;
sgDesc.Header.Revision = NDIS_SG_DMA_DESCRIPTION_REVISION_1;
sgDesc.Header.Size = sizeof(sgDesc);
sgDesc.Flags = NDIS_SG_DMA_64_BIT_ADDRESS;
sgDesc.MaximumPhysicalMapping = 0x10000; // 64K
sgDesc.ProcessSGListHandler = ProcessSGListHandler;
sgDesc.SharedMemAllocateCompleteHandler = SharedMemAllocateCompleteHandler;
sgDesc.ScatterGatherListSize = 0; // OUT value
status = NdisMRegisterScatterGatherDma(pContext->MiniportHandle, &sgDesc, &pContext->DmaHandle);
if (status != NDIS_STATUS_SUCCESS)
{
DPrintf(0, ("[%s] ERROR: NdisMRegisterScatterGatherDma failed (%X)!\n", __FUNCTION__, status));
}
else
{
DPrintf(0, ("[%s] SG recommended size %d\n", __FUNCTION__, sgDesc.ScatterGatherListSize));
}
}
if (status == NDIS_STATUS_SUCCESS)
{
if (NDIS_CONNECT_MESSAGE_BASED == mic.InterruptType)
{
pContext->pMSIXInfoTable = mic.MessageInfoTable;
}
else if (pContext->bUsingMSIX)
{
DPrintf(0, ("[%s] ERROR: Interrupt type %d, message table %p\n",
__FUNCTION__, mic.InterruptType, mic.MessageInfoTable));
status = NDIS_STATUS_RESOURCE_CONFLICT;
}
ParaNdis6_ApplyOffloadPersistentConfiguration(pContext);
DebugParseOffloadBits();
}
DEBUG_EXIT_STATUS(0, status);
return status;
}
