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//
// Copyright (C) Microsoft. All rights reserved.
//
#include "precomp.h"
#include "device.h"
#include "txqueue.h"
#include "rxqueue.h"
_Use_decl_annotations_ NTSTATUS WmbClassAdapterStart(NETADAPTER netAdapter)
{
NTSTATUS status = STATUS_SUCCESS;
PWMBCLASS_NETADAPTER_CONTEXT netAdapterContext = WmbClassGetNetAdapterContext(netAdapter);
PWMBCLASS_DEVICE_CONTEXT deviceContext = netAdapterContext->WmbDeviceContext;
ULONG64 maxXmitLinkSpeed = MBB_MEDIA_MAX_SPEED;
ULONG64 maxRcvLinkSpeed = MBB_MEDIA_MAX_SPEED;
DWORD maxPowerFilterSize = 0;
NET_ADAPTER_LINK_LAYER_CAPABILITIES linkLayerCapabilities;
NET_ADAPTER_LINK_LAYER_CAPABILITIES_INIT(&linkLayerCapabilities, maxXmitLinkSpeed, maxRcvLinkSpeed);
NetAdapterSetLinkLayerCapabilities(netAdapter, &linkLayerCapabilities);
if (deviceContext->BusParams.IsErrataDevice)
{
NetAdapterSetLinkLayerMtuSize(netAdapter, deviceContext->BusParams.MTU);
}
else
{
NetAdapterSetLinkLayerMtuSize(netAdapter, deviceContext->BusParams.MaxSegmentSize);
}
if (deviceContext->BusParams.PowerFiltersSupported > 0)
{
NET_ADAPTER_WAKE_BITMAP_CAPABILITIES bitmapCapabilities;
NET_ADAPTER_WAKE_BITMAP_CAPABILITIES_INIT(&bitmapCapabilities);
bitmapCapabilities.BitmapPattern = TRUE;
bitmapCapabilities.MaximumPatternCount = deviceContext->BusParams.PowerFiltersSupported;
if (deviceContext->BusParams.IsErrataDevice)
{
// For errata devices we will report the device specific max pattern size.
// 192 bytes is the maximum power filter size as per the MBIM spec.
// If a device reports more than 192 bytes as the power filter size, we
// normalize it here to 192 bytes. This will prevent erroneous devices
// from indicating arbitrary pattern size. This needs to change with any
// MBIM spec revision.
if (deviceContext->BusParams.MaxPowerFilterSize > WMBCLASS_MAX_MBIM_WOL_PATTERN)
{
maxPowerFilterSize = WMBCLASS_MAX_MBIM_WOL_PATTERN;
}
else
{
maxPowerFilterSize = deviceContext->BusParams.MaxPowerFilterSize;
}
}
else
{
// To maintain backward compatibility with Win8 devices, we continue
// reporting 256 bytes as the wake pattern size.
maxPowerFilterSize = WMBCLASS_MAX_WOL_PATTERN;
}
bitmapCapabilities.MaximumPatternSize = maxPowerFilterSize;
NetAdapterWakeSetBitmapCapabilities(netAdapter, &bitmapCapabilities);
}
NET_ADAPTER_WAKE_MEDIA_CHANGE_CAPABILITIES wakeMediaChangeCapabilities;
NET_ADAPTER_WAKE_MEDIA_CHANGE_CAPABILITIES_INIT(&wakeMediaChangeCapabilities);
wakeMediaChangeCapabilities.MediaConnect = TRUE;
wakeMediaChangeCapabilities.MediaDisconnect = TRUE;
NetAdapterWakeSetMediaChangeCapabilities(netAdapter, &wakeMediaChangeCapabilities);
if (deviceContext->BusParams.SelectiveSuspendSupported)
{
NET_ADAPTER_WAKE_PACKET_FILTER_CAPABILITIES wakePacketFilterCapabilities;
NET_ADAPTER_WAKE_PACKET_FILTER_CAPABILITIES_INIT(&wakePacketFilterCapabilities);
wakePacketFilterCapabilities.PacketFilterMatch = TRUE;
NetAdapterWakeSetPacketFilterCapabilities(netAdapter, &wakePacketFilterCapabilities);
}
NET_ADAPTER_TX_CAPABILITIES txCapabilities;
NET_ADAPTER_TX_CAPABILITIES_INIT(&txCapabilities, 1);
NET_ADAPTER_RX_CAPABILITIES rxCapabilities;
NET_ADAPTER_RX_CAPABILITIES_INIT_DRIVER_MANAGED(&rxCapabilities, EvtAdapterReturnRxBuffer, MBB_MAX_PACKET_SIZE, 1);
NetAdapterSetDataPathCapabilities(netAdapter, &txCapabilities, &rxCapabilities);
status = NetAdapterStart(netAdapter);
return status;
}
NTSTATUS
EvtAdapterCreateTxQueue(_In_ NETADAPTER netAdapter, _Inout_ NETTXQUEUE_INIT* txQueueInit)
{
NTSTATUS status = STATUS_SUCCESS;
PMBB_TXQUEUE_CONTEXT txQueueContext = NULL;
PWMBCLASS_NETADAPTER_CONTEXT netAdapterContext = WmbClassGetNetAdapterContext(netAdapter);
PWMBCLASS_DEVICE_CONTEXT deviceContext = netAdapterContext->WmbDeviceContext;
WDF_OBJECT_ATTRIBUTES txAttributes;
NET_EXTENSION_QUERY extension;
WDF_OBJECT_ATTRIBUTES_INIT(&txAttributes);
WDF_OBJECT_ATTRIBUTES_INIT_CONTEXT_TYPE(&txAttributes, MBB_TXQUEUE_CONTEXT);
txAttributes.EvtDestroyCallback = EvtTxQueueDestroy;
NET_PACKET_QUEUE_CONFIG queueConfig;
NET_PACKET_QUEUE_CONFIG_INIT(&queueConfig, EvtTxQueueAdvance, EvtTxQueueSetNotificationEnabled, EvtTxQueueCancel);
NETPACKETQUEUE txQueue;
status = NetTxQueueCreate(txQueueInit, &txAttributes, &queueConfig, &txQueue);
if (!NT_SUCCESS(status))
{
goto Exit;
}
txQueueContext = MbbGetTxQueueContext(txQueue);
txQueueContext->NetAdapterContext = netAdapterContext;
txQueueContext->DatapathDescriptor = NetTxQueueGetRingCollection(txQueue);
// Try to use MaxOutDatagrams parameter as the tx completion batch size, but limit to half of the packet ring buffer
auto maxBatchSize = NetRingCollectionGetPacketRing(txQueueContext->DatapathDescriptor)->NumberOfElements / 2;
txQueueContext->CompletionBatchSize = min(deviceContext->BusParams.MaxOutDatagrams, maxBatchSize);
NET_EXTENSION_QUERY_INIT(&extension, NET_FRAGMENT_EXTENSION_MDL_NAME, NET_FRAGMENT_EXTENSION_MDL_VERSION_1, NetExtensionTypeFragment);
NetTxQueueGetExtension(txQueue, &extension, &txQueueContext->MdlExtension);
netAdapterContext->TxQueue = txQueue;
Exit:
return status;
}
void EvtRxQueueStart(_In_ NETPACKETQUEUE rxQueue)
{
MbbGetRxQueueContext(rxQueue)->NetAdapterContext->AllowRxTraffic = TRUE;
}
NTSTATUS
EvtAdapterCreateRxQueue(_In_ NETADAPTER netAdapter, _Inout_ NETRXQUEUE_INIT* rxQueueInit)
{
NTSTATUS status = STATUS_SUCCESS;
PMBB_RXQUEUE_CONTEXT rxQueueContext = NULL;
WDF_OBJECT_ATTRIBUTES rxAttributes;
NET_EXTENSION_QUERY extension;
PWMBCLASS_NETADAPTER_CONTEXT netAdapterContext = WmbClassGetNetAdapterContext(netAdapter);
NET_PACKET_QUEUE_CONFIG rxConfig;
NET_PACKET_QUEUE_CONFIG_INIT(&rxConfig, EvtRxQueueAdvance, EvtRxQueueSetNotificationEnabled, EvtRxQueueCancel);
rxConfig.EvtStart = EvtRxQueueStart;
WDF_OBJECT_ATTRIBUTES_INIT(&rxAttributes);
WDF_OBJECT_ATTRIBUTES_INIT_CONTEXT_TYPE(&rxAttributes, MBB_RXQUEUE_CONTEXT);
rxAttributes.EvtDestroyCallback = EvtRxQueueDestroy;
NETPACKETQUEUE rxQueue;
status = NetRxQueueCreate(rxQueueInit, &rxAttributes, &rxConfig, &rxQueue);
if (!NT_SUCCESS(status))
{
goto Exit;
}
rxQueueContext = MbbGetRxQueueContext(rxQueue);
NET_EXTENSION_QUERY_INIT(&extension, NET_FRAGMENT_EXTENSION_VIRTUAL_ADDRESS_NAME, NET_FRAGMENT_EXTENSION_VIRTUAL_ADDRESS_VERSION_1, NetExtensionTypeFragment);
NetRxQueueGetExtension(rxQueue, &extension, &rxQueueContext->VirtualAddressExtension);
rxQueueContext->NetAdapterContext = netAdapterContext;
rxQueueContext->DatapathDescriptor = NetRxQueueGetRingCollection(rxQueue);
NET_EXTENSION_QUERY_INIT(&extension, NET_FRAGMENT_EXTENSION_RETURN_CONTEXT_NAME, NET_FRAGMENT_EXTENSION_RETURN_CONTEXT_VERSION_1, NetExtensionTypeFragment);
NetRxQueueGetExtension(rxQueue, &extension, &rxQueueContext->ReturnContextExtension);
// Set netAdapterContext->RxQueue to mean EvtAdapterCreateRxQueue completed successfully
netAdapterContext->RxQueue = rxQueue;
Exit:
return status;
}
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