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adapter.cpp
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adapter.cpp
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/*++
THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
PARTICULAR PURPOSE.
Copyright (c) Microsoft Corporation. All rights reserved
--*/
#include "precomp.h"
#include <preview/netadapteroffload.h>
#include <preview/netadaptercx.h>
#include "trace.h"
#include "device.h"
#include "adapter.h"
#include "txqueue.h"
#include "rxqueue.h"
#include "eeprom.h"
#include "gigamac.h"
#define ETH_IS_ZERO(Address) ( \
(((PUCHAR)(Address))[0] == ((UCHAR)0x00)) && \
(((PUCHAR)(Address))[1] == ((UCHAR)0x00)) && \
(((PUCHAR)(Address))[2] == ((UCHAR)0x00)) && \
(((PUCHAR)(Address))[3] == ((UCHAR)0x00)) && \
(((PUCHAR)(Address))[4] == ((UCHAR)0x00)) && \
(((PUCHAR)(Address))[5] == ((UCHAR)0x00)))
NTSTATUS
RtInitializeAdapterContext(
_In_ RT_ADAPTER *adapter,
_In_ WDFDEVICE device,
_In_ NETADAPTER netAdapter
)
/*++
Routine Description:
Allocate RT_ADAPTER data block and do some initialization
Arguments:
adapter Pointer to receive pointer to our adapter
Return Value:
NTSTATUS failure code, or STATUS_SUCCESS
--*/
{
TraceEntry();
NTSTATUS status = STATUS_SUCCESS;
adapter->NetAdapter = netAdapter;
adapter->WdfDevice = device;
//
// Get WDF miniport device context.
//
RtGetDeviceContext(adapter->WdfDevice)->Adapter = adapter;
RtlZeroMemory(adapter->RssIndirectionTable, sizeof(adapter->RssIndirectionTable));
adapter->EEPROMInUse = false;
//spinlock
WDF_OBJECT_ATTRIBUTES attributes;
WDF_OBJECT_ATTRIBUTES_INIT(&attributes);
attributes.ParentObject = adapter->WdfDevice;
GOTO_IF_NOT_NT_SUCCESS(Exit, status,
WdfSpinLockCreate(&attributes, &adapter->Lock));
Exit:
TraceExitResult(status);
return status;
}
void
RtAdapterUpdateHardwareChecksum(
_In_ RT_ADAPTER *adapter
)
{
USHORT cpcr = adapter->CSRAddress->CPCR;
// if one of the checksum offloads is needed
// or one of the LSO offloads is enabled,
// enable HW checksum
if (adapter->IpHwChkSum ||
adapter->TcpHwChkSum ||
adapter->UdpHwChkSum ||
adapter->LSOv4 == RtLsoOffloadEnabled ||
adapter->LSOv6 == RtLsoOffloadEnabled)
{
cpcr |= CPCR_RX_CHECKSUM;
}
else
{
cpcr &= ~CPCR_RX_CHECKSUM;
}
adapter->CSRAddress->CPCR = cpcr;
}
void
RtAdapterQueryHardwareCapabilities(
_Out_ NDIS_OFFLOAD *hardwareCaps
)
{
// TODO: when vlan is implemented, each of TCP_OFFLOAD's encapsulation
// type has to be updated to include NDIS_ENCAPSULATION_IEEE_802_3_P_AND_Q_IN_OOB
RtlZeroMemory(hardwareCaps, sizeof(*hardwareCaps));
hardwareCaps->Header.Type = NDIS_OBJECT_TYPE_OFFLOAD;
hardwareCaps->Header.Size = NDIS_SIZEOF_NDIS_OFFLOAD_REVISION_5;
hardwareCaps->Header.Revision = NDIS_OFFLOAD_REVISION_5;
// IPv4 checksum offloads supported
hardwareCaps->Checksum.IPv4Transmit.Encapsulation = NDIS_ENCAPSULATION_IEEE_802_3;
hardwareCaps->Checksum.IPv4Transmit.IpChecksum = NDIS_OFFLOAD_SUPPORTED;
hardwareCaps->Checksum.IPv4Transmit.IpOptionsSupported = NDIS_OFFLOAD_SUPPORTED;
hardwareCaps->Checksum.IPv4Transmit.TcpChecksum = NDIS_OFFLOAD_SUPPORTED;
hardwareCaps->Checksum.IPv4Transmit.TcpOptionsSupported = NDIS_OFFLOAD_SUPPORTED;
hardwareCaps->Checksum.IPv4Transmit.UdpChecksum = NDIS_OFFLOAD_SUPPORTED;
hardwareCaps->Checksum.IPv4Receive.Encapsulation = NDIS_ENCAPSULATION_IEEE_802_3;
hardwareCaps->Checksum.IPv4Receive.IpChecksum = NDIS_OFFLOAD_SUPPORTED;
hardwareCaps->Checksum.IPv4Receive.IpOptionsSupported = NDIS_OFFLOAD_SUPPORTED;
hardwareCaps->Checksum.IPv4Receive.TcpChecksum = NDIS_OFFLOAD_SUPPORTED;
hardwareCaps->Checksum.IPv4Receive.TcpOptionsSupported = NDIS_OFFLOAD_SUPPORTED;
hardwareCaps->Checksum.IPv4Receive.UdpChecksum = NDIS_OFFLOAD_SUPPORTED;
// IPv6 checksum offloads supported
hardwareCaps->Checksum.IPv6Transmit.Encapsulation = NDIS_ENCAPSULATION_IEEE_802_3;
hardwareCaps->Checksum.IPv6Transmit.IpExtensionHeadersSupported = NDIS_OFFLOAD_SUPPORTED;
hardwareCaps->Checksum.IPv6Transmit.TcpChecksum = NDIS_OFFLOAD_SUPPORTED;
hardwareCaps->Checksum.IPv6Transmit.TcpOptionsSupported = NDIS_OFFLOAD_SUPPORTED;
hardwareCaps->Checksum.IPv6Transmit.UdpChecksum = NDIS_OFFLOAD_SUPPORTED;
hardwareCaps->Checksum.IPv6Receive.Encapsulation = NDIS_ENCAPSULATION_IEEE_802_3;
hardwareCaps->Checksum.IPv6Receive.IpExtensionHeadersSupported = NDIS_OFFLOAD_SUPPORTED;
hardwareCaps->Checksum.IPv6Receive.TcpChecksum = NDIS_OFFLOAD_SUPPORTED;
hardwareCaps->Checksum.IPv6Receive.TcpOptionsSupported = NDIS_OFFLOAD_SUPPORTED;
hardwareCaps->Checksum.IPv6Receive.UdpChecksum = NDIS_OFFLOAD_SUPPORTED;
// LSOv1 IPv4 offload NOT supported
hardwareCaps->LsoV1.IPv4.Encapsulation = NDIS_ENCAPSULATION_NOT_SUPPORTED;
hardwareCaps->LsoV1.IPv4.MaxOffLoadSize = 0;
hardwareCaps->LsoV1.IPv4.MinSegmentCount = 0;
hardwareCaps->LsoV1.IPv4.TcpOptions = NDIS_OFFLOAD_NOT_SUPPORTED;
hardwareCaps->LsoV1.IPv4.IpOptions = NDIS_OFFLOAD_NOT_SUPPORTED;
// LSOv2 IPv4 offload supported
hardwareCaps->LsoV2.IPv4.Encapsulation = NDIS_ENCAPSULATION_IEEE_802_3;
hardwareCaps->LsoV2.IPv4.MaxOffLoadSize = RT_LSO_OFFLOAD_MAX_SIZE;
hardwareCaps->LsoV2.IPv4.MinSegmentCount = RT_LSO_OFFLOAD_MIN_SEGMENT_COUNT;
// LSOv2 IPv6 offload supported
hardwareCaps->LsoV2.IPv6.Encapsulation = NDIS_ENCAPSULATION_IEEE_802_3;
hardwareCaps->LsoV2.IPv6.MaxOffLoadSize = RT_LSO_OFFLOAD_MAX_SIZE;
hardwareCaps->LsoV2.IPv6.MinSegmentCount = RT_LSO_OFFLOAD_MIN_SEGMENT_COUNT;
hardwareCaps->LsoV2.IPv6.IpExtensionHeadersSupported = NDIS_OFFLOAD_SUPPORTED;
hardwareCaps->LsoV2.IPv6.TcpOptionsSupported = NDIS_OFFLOAD_SUPPORTED;
}
_Use_decl_annotations_
NTSTATUS
EvtAdapterCreateTxQueue(
_In_ NETADAPTER netAdapter,
_Inout_ NETTXQUEUE_INIT * txQueueInit
)
{
NTSTATUS status = STATUS_SUCCESS;
TraceEntryNetAdapter(netAdapter);
RT_ADAPTER *adapter = RtGetAdapterContext(netAdapter);
#pragma region Create NETTXQUEUE
WDF_OBJECT_ATTRIBUTES txAttributes;
WDF_OBJECT_ATTRIBUTES_INIT_CONTEXT_TYPE(&txAttributes, RT_TXQUEUE);
txAttributes.EvtDestroyCallback = EvtTxQueueDestroy;
NET_PACKET_QUEUE_CONFIG txConfig;
NET_PACKET_QUEUE_CONFIG_INIT(
&txConfig,
EvtTxQueueAdvance,
EvtTxQueueSetNotificationEnabled,
EvtTxQueueCancel);
txConfig.EvtStart = EvtTxQueueStart;
txConfig.EvtStop = EvtTxQueueStop;
NETPACKETQUEUE txQueue;
GOTO_IF_NOT_NT_SUCCESS(Exit, status,
NetTxQueueCreate(
txQueueInit,
&txAttributes,
&txConfig,
&txQueue));
#pragma endregion
#pragma region Get packet extension offsets
RT_TXQUEUE *tx = RtGetTxQueueContext(txQueue);
NET_EXTENSION_QUERY extension;
NET_EXTENSION_QUERY_INIT(
&extension,
NET_PACKET_EXTENSION_CHECKSUM_NAME,
NET_PACKET_EXTENSION_CHECKSUM_VERSION_1,
NetExtensionTypePacket);
NetTxQueueGetExtension(txQueue, &extension, &tx->ChecksumExtension);
NET_EXTENSION_QUERY_INIT(
&extension,
NET_PACKET_EXTENSION_LSO_NAME,
NET_PACKET_EXTENSION_LSO_VERSION_1,
NetExtensionTypePacket);
NetTxQueueGetExtension(txQueue, &extension, &tx->LsoExtension);
NET_EXTENSION_QUERY_INIT(
&extension,
NET_FRAGMENT_EXTENSION_VIRTUAL_ADDRESS_NAME,
NET_FRAGMENT_EXTENSION_VIRTUAL_ADDRESS_VERSION_1,
NetExtensionTypeFragment);
NetTxQueueGetExtension(txQueue, &extension, &tx->VirtualAddressExtension);
NET_EXTENSION_QUERY_INIT(
&extension,
NET_FRAGMENT_EXTENSION_LOGICAL_ADDRESS_NAME,
NET_FRAGMENT_EXTENSION_LOGICAL_ADDRESS_VERSION_1,
NetExtensionTypeFragment);
NetTxQueueGetExtension(txQueue, &extension, &tx->LogicalAddressExtension);
#pragma endregion
#pragma region Initialize RTL8168D Transmit Queue
GOTO_IF_NOT_NT_SUCCESS(Exit, status,
RtTxQueueInitialize(txQueue, adapter));
#pragma endregion
Exit:
TraceExitResult(status);
return status;
}
_Use_decl_annotations_
NTSTATUS
EvtAdapterCreateRxQueue(
_In_ NETADAPTER netAdapter,
_Inout_ NETRXQUEUE_INIT * rxQueueInit
)
{
NTSTATUS status = STATUS_SUCCESS;
TraceEntryNetAdapter(netAdapter);
RT_ADAPTER *adapter = RtGetAdapterContext(netAdapter);
#pragma region Create NETRXQUEUE
WDF_OBJECT_ATTRIBUTES rxAttributes;
WDF_OBJECT_ATTRIBUTES_INIT_CONTEXT_TYPE(&rxAttributes, RT_RXQUEUE);
rxAttributes.EvtDestroyCallback = EvtRxQueueDestroy;
NET_PACKET_QUEUE_CONFIG rxConfig;
NET_PACKET_QUEUE_CONFIG_INIT(
&rxConfig,
EvtRxQueueAdvance,
EvtRxQueueSetNotificationEnabled,
EvtRxQueueCancel);
rxConfig.EvtStart = EvtRxQueueStart;
rxConfig.EvtStop = EvtRxQueueStop;
const ULONG queueId = NetRxQueueInitGetQueueId(rxQueueInit);
NETPACKETQUEUE rxQueue;
GOTO_IF_NOT_NT_SUCCESS(Exit, status,
NetRxQueueCreate(rxQueueInit, &rxAttributes, &rxConfig, &rxQueue));
#pragma endregion
RT_RXQUEUE *rx = RtGetRxQueueContext(rxQueue);
NET_EXTENSION_QUERY extension;
NET_EXTENSION_QUERY_INIT(
&extension,
NET_PACKET_EXTENSION_CHECKSUM_NAME,
NET_PACKET_EXTENSION_CHECKSUM_VERSION_1,
NetExtensionTypePacket);
rx->QueueId = queueId;
NetRxQueueGetExtension(rxQueue, &extension, &rx->ChecksumExtension);
NET_EXTENSION_QUERY_INIT(
&extension,
NET_FRAGMENT_EXTENSION_LOGICAL_ADDRESS_NAME,
NET_FRAGMENT_EXTENSION_LOGICAL_ADDRESS_VERSION_1,
NetExtensionTypeFragment);
NetRxQueueGetExtension(rxQueue, &extension, &rx->LogicalAddressExtension);
#pragma region Initialize RTL8168D Receive Queue
GOTO_IF_NOT_NT_SUCCESS(Exit, status,
RtRxQueueInitialize(rxQueue, adapter));
#pragma endregion
Exit:
TraceExitResult(status);
return status;
}
static
NTSTATUS
RtReceiveScalingEnable(
_In_ RT_ADAPTER *adapter,
_In_ NET_ADAPTER_RECEIVE_SCALING_PROTOCOL_TYPE protocols
)
{
UINT32 controlBitsEnable = RSS_MULTI_CPU_ENABLE | RSS_HASH_BITS_ENABLE;
if (protocols & NetAdapterReceiveScalingProtocolTypeIPv4)
{
controlBitsEnable |= RSS_IPV4_ENABLE;
if (protocols & NetAdapterReceiveScalingProtocolTypeTcp)
{
controlBitsEnable |= RSS_IPV4_TCP_ENABLE;
}
}
if (protocols & NetAdapterReceiveScalingProtocolTypeIPv6)
{
controlBitsEnable |= RSS_IPV6_ENABLE;
if (protocols & NetAdapterReceiveScalingProtocolTypeTcp)
{
controlBitsEnable |= RSS_IPV6_TCP_ENABLE;
}
}
if (! GigaMacRssSetControl(adapter, controlBitsEnable))
{
WdfDeviceSetFailed(adapter->WdfDevice, WdfDeviceFailedAttemptRestart);
return STATUS_UNSUCCESSFUL;
}
// TBD restart rx queue
return STATUS_SUCCESS;
}
static
NTSTATUS
RtReceiveScalingSetHashSecretKey(
_In_ RT_ADAPTER *adapter,
_In_ NET_ADAPTER_RECEIVE_SCALING_HASH_SECRET_KEY const *hashSecretKey
)
{
const UINT32 * key = (const UINT32 *)hashSecretKey->Key;
const size_t keySize = hashSecretKey->Length / sizeof(*key);
if (! GigaMacRssSetHashSecretKey(adapter, key, keySize))
{
WdfDeviceSetFailed(adapter->WdfDevice, WdfDeviceFailedAttemptRestart);
return STATUS_UNSUCCESSFUL;
}
return STATUS_SUCCESS;
}
static
NTSTATUS
EvtAdapterReceiveScalingEnable(
_In_ NETADAPTER netAdapter,
_In_ NET_ADAPTER_RECEIVE_SCALING_HASH_TYPE hashType,
_In_ NET_ADAPTER_RECEIVE_SCALING_PROTOCOL_TYPE protocolType
)
{
UNREFERENCED_PARAMETER(hashType);
TraceEntryNetAdapter(netAdapter);
NTSTATUS status = STATUS_SUCCESS;
RT_ADAPTER *adapter = RtGetAdapterContext(netAdapter);
GOTO_IF_NOT_NT_SUCCESS(Exit, status,
RtReceiveScalingEnable(adapter, protocolType));
Exit:
TraceExitResult(status);
return status;
}
static
VOID
EvtAdapterReceiveScalingDisable(
_In_ NETADAPTER netAdapter
)
{
RT_ADAPTER *adapter = RtGetAdapterContext(netAdapter);
if (! GigaMacRssSetControl(adapter, RSS_MULTI_CPU_DISABLE))
{
WdfDeviceSetFailed(adapter->WdfDevice, WdfDeviceFailedAttemptRestart);
}
}
static
NTSTATUS
EvtAdapterReceiveScalingSetHashSecretKey(
_In_ NETADAPTER netAdapter,
_In_ NET_ADAPTER_RECEIVE_SCALING_HASH_SECRET_KEY const *hashSecretKey
)
{
return RtReceiveScalingSetHashSecretKey(RtGetAdapterContext(netAdapter), hashSecretKey);
}
static
NTSTATUS
EvtAdapterReceiveScalingSetIndirectionEntries(
_In_ NETADAPTER netAdapter,
_In_ NET_ADAPTER_RECEIVE_SCALING_INDIRECTION_ENTRIES *indirectionEntries
)
{
RT_ADAPTER * adapter = RtGetAdapterContext(netAdapter);
for (size_t i = 0; i < indirectionEntries->Length; i++)
{
const ULONG queueId = RtGetRxQueueContext(indirectionEntries->Entries[i].PacketQueue)->QueueId;
const UINT32 index = indirectionEntries->Entries[i].Index;
const size_t bit0 = index >> 5;
const size_t bit1 = bit0 + ARRAYSIZE(adapter->RssIndirectionTable) / 2;
const UINT32 bitv = 1 << (index & 0x1f);
adapter->RssIndirectionTable[bit0] = queueId & 1
? (adapter->RssIndirectionTable[bit0] | bitv)
: (adapter->RssIndirectionTable[bit0] & ~bitv);
adapter->RssIndirectionTable[bit1] = queueId & 2
? (adapter->RssIndirectionTable[bit1] | bitv)
: (adapter->RssIndirectionTable[bit1] & ~bitv);
}
// we just blat the entire table, could be optimized further
for (size_t i = 0; i < ARRAYSIZE(adapter->CSRAddress->RssIndirectionTable); i++)
{
adapter->CSRAddress->RssIndirectionTable[i] = adapter->RssIndirectionTable[i];
}
return STATUS_SUCCESS;
}
NTSTATUS
RtAdapterReadAddress(
_In_ RT_ADAPTER *adapter
)
/*++
Routine Description:
Read the mac addresss from the adapter
Arguments:
adapter Pointer to our adapter
Return Value:
STATUS_SUCCESS
STATUS_NDIS_INVALID_ADDRESS
--*/
{
TraceEntryRtAdapter(adapter);
NTSTATUS status = STATUS_SUCCESS;
if (adapter->EEPROMSupported)
{
RtAdapterReadEEPROMPermanentAddress(adapter);
}
else
{
for (ULONG i = 0; i < ETH_LENGTH_OF_ADDRESS; i += 2)
{
*((PUSHORT)(&adapter->PermanentAddress.Address[i])) =
*(USHORT*)&adapter->CSRAddress->ID[i];
}
adapter->PermanentAddress.Length = ETHERNET_ADDRESS_LENGTH;
}
TraceLoggingWrite(
RealtekTraceProvider,
"PermanentAddressRead",
TraceLoggingBinary(&adapter->PermanentAddress.Address, adapter->PermanentAddress.Length, "PermanentAddress"));
if (ETH_IS_MULTICAST(adapter->PermanentAddress.Address) ||
ETH_IS_BROADCAST(adapter->PermanentAddress.Address) ||
ETH_IS_ZERO(adapter->PermanentAddress.Address))
{
GOTO_IF_NOT_NT_SUCCESS(Exit, status, STATUS_NDIS_INVALID_ADDRESS);
}
if (!adapter->OverrideAddress)
{
RtlCopyMemory(
&adapter->CurrentAddress,
&adapter->PermanentAddress,
sizeof(adapter->PermanentAddress));
}
Exit:
TraceExitResult(status);
return status;
}
void
RtAdapterRefreshCurrentAddress(
_In_ RT_ADAPTER *adapter
)
{
UCHAR TmpUchar = adapter->CSRAddress->REG_F0_F3.RESV_F3;
TmpUchar |= BIT_2;
adapter->CSRAddress->REG_F0_F3.RESV_F3 = TmpUchar;
// NIC hardware register to default
RtAdapterIssueFullReset(adapter);
// Program current address
RtAdapterSetupCurrentAddress(adapter);
}
void
RtAdapterEnableCR9346Write(
_In_ RT_ADAPTER *adapter
)
{
UCHAR ucCr9346Value;
ucCr9346Value = adapter->CSRAddress->CR9346;
ucCr9346Value |= (CR9346_EEM1 | CR9346_EEM0);
adapter->CSRAddress->CR9346 = ucCr9346Value;
}
void
RtAdapterDisableCR9346Write(
_In_ RT_ADAPTER *adapter
)
{
UCHAR ucCr9346Value;
ucCr9346Value = adapter->CSRAddress->CR9346;
ucCr9346Value &= ~(CR9346_EEM1 | CR9346_EEM0);
adapter->CSRAddress->CR9346 = ucCr9346Value;
}
void
RtAdapterSetupCurrentAddress(
_In_ RT_ADAPTER *adapter
)
{
RtAdapterEnableCR9346Write(adapter); {
for (UINT i = 0; i < ETHERNET_ADDRESS_LENGTH; i++)
{
adapter->CSRAddress->ID[i] = adapter->CurrentAddress.Address[i];
}
} RtAdapterDisableCR9346Write(adapter);
}
ULONG
ComputeCrc(
_In_reads_(length) UCHAR const *buffer,
UINT length
)
{
ULONG crc = 0xffffffff;
for (UINT i = 0; i < length; i++)
{
UCHAR curByte = buffer[i];
for (UINT j = 0; j < 8; j++)
{
ULONG carry = ((crc & 0x80000000) ? 1 : 0) ^ (curByte & 0x01);
crc <<= 1;
curByte >>= 1;
if (carry)
{
crc = (crc ^ 0x04c11db6) | carry;
}
}
}
return crc;
}
void
GetMulticastBit(
_In_ NET_ADAPTER_LINK_LAYER_ADDRESS const * address,
_Out_ _Post_satisfies_(*byte < MAX_NIC_MULTICAST_REG) UCHAR *byte,
_Out_ UCHAR *value
)
/*++
Routine Description:
For a given multicast address, returns the byte and bit in
the card multicast registers that it hashes to. Calls
ComputeCrc() to determine the CRC value.
--*/
{
ULONG crc = ComputeCrc(address->Address, address->Length);
// The bit number is now in the 6 most significant bits of CRC.
UINT bitNumber = (UINT)((crc >> 26) & 0x3f);
*byte = (UCHAR)(bitNumber / 8);
*value = (UCHAR)((UCHAR)1 << (bitNumber % 8));
}
void
RtAdapterSetMulticastReg(
_In_ RT_ADAPTER *adapter,
_In_reads_bytes_(MAX_NIC_MULTICAST_REG) UCHAR const *multicastRegs
)
{
// The control block stores the multicast registers in descending order.
// Write to them using DWORD writes.
{
UCHAR mar7_4[4];
mar7_4[0] = multicastRegs[7];
mar7_4[1] = multicastRegs[6];
mar7_4[2] = multicastRegs[5];
mar7_4[3] = multicastRegs[4];
*reinterpret_cast<DWORD volatile *>(&adapter->CSRAddress->MulticastReg7) =
*reinterpret_cast<DWORD*>(&mar7_4[0]);
}
{
UCHAR mar3_0[4];
mar3_0[0] = multicastRegs[3];
mar3_0[1] = multicastRegs[2];
mar3_0[2] = multicastRegs[1];
mar3_0[3] = multicastRegs[0];
*reinterpret_cast<DWORD volatile *>(&adapter->CSRAddress->MulticastReg3) =
*reinterpret_cast<DWORD*>(&mar3_0[0]);
}
}
void RtAdapterPushMulticastList(
_In_ RT_ADAPTER *adapter
)
{
UCHAR multicastRegs[MAX_NIC_MULTICAST_REG] = { 0 };
if (adapter->PacketFilter &
(NetPacketFilterFlagPromiscuous | NetPacketFilterFlagAllMulticast))
{
RtlFillMemory(multicastRegs, MAX_NIC_MULTICAST_REG, 0xFF);
}
else
{
// Now turn on the bit for each address in the multicast list.
for (UINT i = 0; i < adapter->MCAddressCount; i++)
{
UCHAR byte, bit;
GetMulticastBit(&adapter->MCList[i], &byte, &bit);
multicastRegs[byte] |= bit;
}
}
RtAdapterSetMulticastReg(adapter, multicastRegs);
}
bool
RtAdapterQueryChipType(
_In_ RT_ADAPTER *adapter,
_Out_ RT_CHIP_TYPE *chipType
)
{
ULONG const tcr = adapter->CSRAddress->TCR;
ULONG const rcr = adapter->CSRAddress->RCR;
ULONG const macVer = tcr & 0x7C800000;
ULONG const revId = tcr & (BIT_20 | BIT_21 | BIT_22);
ULONG const eepromSelect = rcr & RCR_9356SEL;
TraceLoggingWrite(
RealtekTraceProvider,
"ChipInfo",
TraceLoggingUInt32(macVer),
TraceLoggingUInt32(revId),
TraceLoggingUInt32(eepromSelect));
*chipType = RTLUNKNOWN;
switch (macVer)
{
case 0x28000000:
switch (revId)
{
case 0x300000:
*chipType = RTL8168D_REV_C_REV_D;
break;
case 0x000000:
*chipType = RTL8168D;
break;
default:
*chipType = RTL8168D_REV_C_REV_D;
break;
}
// RTL8168D && EEPROM 93C46
return eepromSelect == 0;
case 0x2c000000:
*chipType = RTL8168E;
return true;
default:
return false;
}
}
void
RtAdapterSetupHardware(
_In_ RT_ADAPTER *adapter
)
{
UCHAR TmpUchar;
TmpUchar = adapter->CSRAddress->REG_F0_F3.RESV_F3;
TmpUchar |= BIT_2;
adapter->CSRAddress->REG_F0_F3.RESV_F3 = TmpUchar;
TmpUchar = adapter->CSRAddress->REG_D0_D3.RESV_D1;
TmpUchar |= (BIT_7 | BIT_1);
adapter->CSRAddress->REG_D0_D3.RESV_D1 = TmpUchar;
}
void
RtAdapterIssueFullReset(
_In_ RT_ADAPTER *adapter
)
{
adapter->CSRAddress->CmdReg = CR_RST;
for (UINT i = 0; i < 20; i++)
{
KeStallExecutionProcessor(20);
if (!(adapter->CSRAddress->CmdReg & CR_RST))
{
break;
}
}
}
void
RtAdapterUpdateInterruptModeration(
_In_ RT_ADAPTER *adapter
)
{
WdfSpinLockAcquire(adapter->Lock); {
USHORT timerFlags = 0;
if (adapter->InterruptModerationDisabled ||
adapter->InterruptModerationMode == RtInterruptModerationDisabled)
{
// No interrupt moderation
adapter->CSRAddress->IntMiti.RxTimerNum = 0;
adapter->CSRAddress->IntMiti.TxTimerNum = 0;
}
else
{
switch (adapter->InterruptModerationLevel)
{
case RtInterruptModerationLow:
timerFlags |= CPCR_INT_MITI_TIMER_UNIT_0;
timerFlags |= CPCR_INT_MITI_TIMER_UNIT_1;
// Rx: Approximately 500us delay before interrupting
adapter->CSRAddress->IntMiti.RxTimerNum = 0x30;
// Tx: Completion is one unit bigger than rx interrupt
adapter->CSRAddress->IntMiti.TxTimerNum = 0x50;
break;
case RtInterruptModerationMedium:
timerFlags |= CPCR_INT_MITI_TIMER_UNIT_0;
timerFlags |= CPCR_INT_MITI_TIMER_UNIT_1;
// Rx: Approximately 2400us delay before interrupting
adapter->CSRAddress->IntMiti.RxTimerNum = 0xf0;
// Tx: Completion isn't time-critical; give it the maximum slack.
adapter->CSRAddress->IntMiti.TxTimerNum = 0xf0;
break;
}
}
USHORT currentCpcr = adapter->CSRAddress->CPCR;
USHORT newCpcr = currentCpcr;
newCpcr &= ~(CPCR_INT_MITI_TIMER_UNIT_0 | CPCR_INT_MITI_TIMER_UNIT_1);
newCpcr |= timerFlags;
if (currentCpcr != newCpcr)
{
adapter->CSRAddress->CPCR = newCpcr;
}
} WdfSpinLockRelease(adapter->Lock);
}
void
EvtSetPacketFilter(
_In_ NETADAPTER netAdapter,
_In_ NET_PACKET_FILTER_FLAGS PacketFilter
)
{
RT_ADAPTER *adapter = RtGetAdapterContext(netAdapter);
WdfSpinLockAcquire(adapter->Lock); {
adapter->PacketFilter = PacketFilter;
RtAdapterUpdateRcr(adapter);
// Changing the packet filter might require clearing the active MCList
RtAdapterPushMulticastList(adapter);
} WdfSpinLockRelease(adapter->Lock);
}
void
EvtSetMulticastList(
_In_ NETADAPTER NetAdapter,
_In_ ULONG MulticastAddressCount,
_In_ NET_ADAPTER_LINK_LAYER_ADDRESS * MulticastAddressList
)
{
RT_ADAPTER *adapter = RtGetAdapterContext(NetAdapter);
WdfSpinLockAcquire(adapter->Lock); {
adapter->MCAddressCount = MulticastAddressCount;
RtlZeroMemory(adapter->MCList,
sizeof(NET_ADAPTER_LINK_LAYER_ADDRESS) * RT_MAX_MCAST_LIST);
if (MulticastAddressCount != 0)
{
RtlCopyMemory(adapter->MCList,
MulticastAddressList,
sizeof(NET_ADAPTER_LINK_LAYER_ADDRESS) * MulticastAddressCount);
}
RtAdapterPushMulticastList(adapter);
} WdfSpinLockRelease(adapter->Lock);
}
static
void
RtAdapterSetMulticastCapabilities(
_In_ RT_ADAPTER *adapter
)
{
NET_ADAPTER_MULTICAST_CAPABILITIES multicastCapabilities;
NET_ADAPTER_MULTICAST_CAPABILITIES_INIT(
&multicastCapabilities,
RT_MAX_MCAST_LIST,
EvtSetMulticastList);
NetAdapterSetMulticastCapabilities(adapter->NetAdapter, &multicastCapabilities);
}
static
void
RtAdapterSetLinkLayerCapabilities(
_In_ RT_ADAPTER *adapter
)
{
ULONG64 maxXmitLinkSpeed = RT_MEDIA_MAX_SPEED;
ULONG64 maxRcvLinkSpeed = RT_MEDIA_MAX_SPEED;
NET_ADAPTER_LINK_LAYER_CAPABILITIES linkLayerCapabilities;
NET_ADAPTER_LINK_LAYER_CAPABILITIES_INIT(
&linkLayerCapabilities,
maxXmitLinkSpeed,
maxRcvLinkSpeed);
NET_ADAPTER_PACKET_FILTER_CAPABILITIES packetFilterCapabilities;
NET_ADAPTER_PACKET_FILTER_CAPABILITIES_INIT(
&packetFilterCapabilities,
RT_SUPPORTED_FILTERS,
EvtSetPacketFilter);
NetAdapterSetLinkLayerCapabilities(adapter->NetAdapter, &linkLayerCapabilities);
NetAdapterSetLinkLayerMtuSize(adapter->NetAdapter, RT_MAX_PACKET_SIZE - ETH_LENGTH_OF_HEADER);
NetAdapterSetPermanentLinkLayerAddress(adapter->NetAdapter, &adapter->PermanentAddress);
NetAdapterSetCurrentLinkLayerAddress(adapter->NetAdapter, &adapter->CurrentAddress);
NetAdapterSetPacketFilterCapabilities(adapter->NetAdapter, &packetFilterCapabilities);
}
static
void
RtAdapterSetReceiveScalingCapabilities(
_In_ RT_ADAPTER const *adapter
)
{
if (adapter->RssEnabled)
{
NET_ADAPTER_RECEIVE_SCALING_CAPABILITIES receiveScalingCapabilities;
NET_ADAPTER_RECEIVE_SCALING_CAPABILITIES_INIT(
&receiveScalingCapabilities,
4, // NumberOfQueues
NetAdapterReceiveScalingUnhashedTargetTypeHashIndex,
NetAdapterReceiveScalingHashTypeToeplitz,
NetAdapterReceiveScalingProtocolTypeIPv4 |
NetAdapterReceiveScalingProtocolTypeIPv6 |
NetAdapterReceiveScalingProtocolTypeTcp,
EvtAdapterReceiveScalingEnable,
EvtAdapterReceiveScalingDisable,
EvtAdapterReceiveScalingSetHashSecretKey,
EvtAdapterReceiveScalingSetIndirectionEntries);
receiveScalingCapabilities.SynchronizeSetIndirectionEntries = true;
NetAdapterSetReceiveScalingCapabilities(adapter->NetAdapter, &receiveScalingCapabilities);
}
}
static
void
RtAdapterSetPowerCapabilities(
_In_ RT_ADAPTER const *adapter
)
{
NET_ADAPTER_WAKE_MAGIC_PACKET_CAPABILITIES magicPacketCapabilities;
NET_ADAPTER_WAKE_MAGIC_PACKET_CAPABILITIES_INIT(&magicPacketCapabilities);
magicPacketCapabilities.MagicPacket = TRUE;
NetAdapterWakeSetMagicPacketCapabilities(adapter->NetAdapter, &magicPacketCapabilities);
}
static
void
RtAdapterSetDatapathCapabilities(
_In_ RT_ADAPTER const *adapter
)
{
NET_ADAPTER_DMA_CAPABILITIES txDmaCapabilities;
NET_ADAPTER_DMA_CAPABILITIES_INIT(&txDmaCapabilities, adapter->DmaEnabler);
NET_ADAPTER_TX_CAPABILITIES txCapabilities;
NET_ADAPTER_TX_CAPABILITIES_INIT_FOR_DMA(
&txCapabilities,
&txDmaCapabilities,
1);
txCapabilities.FragmentRingNumberOfElementsHint = adapter->NumTcb * RT_MAX_PHYS_BUF_COUNT;
txCapabilities.MaximumNumberOfFragments = RT_MAX_PHYS_BUF_COUNT;
NET_ADAPTER_DMA_CAPABILITIES rxDmaCapabilities;
NET_ADAPTER_DMA_CAPABILITIES_INIT(&rxDmaCapabilities, adapter->DmaEnabler);
NET_ADAPTER_RX_CAPABILITIES rxCapabilities;
NET_ADAPTER_RX_CAPABILITIES_INIT_SYSTEM_MANAGED_DMA(
&rxCapabilities,
&rxDmaCapabilities,
RT_MAX_PACKET_SIZE + FRAME_CRC_SIZE + RSVD_BUF_SIZE,
1);