mirror of
https://github.com/reactos/reactos.git
synced 2024-11-10 00:34:39 +00:00
59d8a77df6
These adapters were common in DEC Alpha boxes and they are really rare nowadays. The 21140 chip is emulated in Connectix / Microsoft Virtual PC and Hyper-V Gen 1 VM. This is an experimental driver, not yet tested on real hardware. CORE-8724
401 lines
9.4 KiB
C
401 lines
9.4 KiB
C
/*
|
|
* PROJECT: ReactOS DC21x4 Driver
|
|
* LICENSE: GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
|
|
* PURPOSE: Miniport driver entry
|
|
* COPYRIGHT: Copyright 2023 Dmitry Borisov <di.sean@protonmail.com>
|
|
*/
|
|
|
|
/* INCLUDES *******************************************************************/
|
|
|
|
#include "dc21x4.h"
|
|
|
|
#include <debug.h>
|
|
|
|
/* FUNCTIONS ******************************************************************/
|
|
|
|
ULONG
|
|
DcEthernetCrc(
|
|
_In_reads_bytes_(Size) const VOID* Buffer,
|
|
_In_ ULONG Size)
|
|
{
|
|
ULONG i, j, Crc;
|
|
const UCHAR* Data = Buffer;
|
|
|
|
Crc = 0xFFFFFFFF;
|
|
for (i = 0; i < Size; ++i)
|
|
{
|
|
Crc ^= Data[i];
|
|
for (j = 8; j > 0; j--)
|
|
{
|
|
/* CRC-32 polynomial little-endian */
|
|
Crc = (Crc >> 1) ^ (-(LONG)(Crc & 1) & 0xEDB88320);
|
|
}
|
|
}
|
|
|
|
return Crc;
|
|
}
|
|
|
|
static
|
|
VOID
|
|
DcFlushTransmitQueue(
|
|
_In_ PDC21X4_ADAPTER Adapter)
|
|
{
|
|
LIST_ENTRY DoneList;
|
|
PLIST_ENTRY Entry;
|
|
PNDIS_PACKET Packet;
|
|
PDC_TCB Tcb;
|
|
|
|
InitializeListHead(&DoneList);
|
|
|
|
NdisAcquireSpinLock(&Adapter->SendLock);
|
|
|
|
/* Remove pending transmissions from the transmit ring */
|
|
for (Tcb = Adapter->LastTcb;
|
|
Tcb != Adapter->CurrentTcb;
|
|
Tcb = DC_NEXT_TCB(Adapter, Tcb))
|
|
{
|
|
Packet = Tcb->Packet;
|
|
|
|
if (!Packet)
|
|
continue;
|
|
|
|
InsertTailList(&DoneList, DC_LIST_ENTRY_FROM_PACKET(Packet));
|
|
|
|
DC_RELEASE_TCB(Adapter, Tcb);
|
|
}
|
|
Adapter->CurrentTcb = Tcb;
|
|
|
|
/* Remove pending transmissions from the internal queue */
|
|
while (!IsListEmpty(&Adapter->SendQueueList))
|
|
{
|
|
Entry = RemoveHeadList(&Adapter->SendQueueList);
|
|
|
|
InsertTailList(&DoneList, Entry);
|
|
}
|
|
|
|
NdisReleaseSpinLock(&Adapter->SendLock);
|
|
|
|
while (!IsListEmpty(&DoneList))
|
|
{
|
|
Entry = RemoveHeadList(&DoneList);
|
|
|
|
NdisMSendComplete(Adapter->AdapterHandle,
|
|
DC_PACKET_FROM_LIST_ENTRY(Entry),
|
|
NDIS_STATUS_FAILURE);
|
|
}
|
|
}
|
|
|
|
static
|
|
VOID
|
|
DcStopReceivePath(
|
|
_In_ PDC21X4_ADAPTER Adapter)
|
|
{
|
|
BOOLEAN RxStopped;
|
|
|
|
ASSERT(KeGetCurrentIrql() < DISPATCH_LEVEL);
|
|
|
|
#if DBG
|
|
NdisAcquireSpinLock(&Adapter->ReceiveLock);
|
|
if (Adapter->RcbFree != Adapter->RcbCount)
|
|
{
|
|
INFO("RX packets: %u/%u\n", Adapter->RcbFree, Adapter->RcbCount);
|
|
}
|
|
NdisReleaseSpinLock(&Adapter->ReceiveLock);
|
|
#endif
|
|
|
|
while (TRUE)
|
|
{
|
|
NdisAcquireSpinLock(&Adapter->ReceiveLock);
|
|
|
|
RxStopped = (Adapter->RcbFree == Adapter->RcbCount);
|
|
|
|
NdisReleaseSpinLock(&Adapter->ReceiveLock);
|
|
|
|
if (RxStopped)
|
|
break;
|
|
|
|
NdisMSleep(10);
|
|
}
|
|
}
|
|
|
|
DECLSPEC_NOINLINE /* Called from pageable code */
|
|
VOID
|
|
DcStopAdapter(
|
|
_In_ PDC21X4_ADAPTER Adapter,
|
|
_In_ BOOLEAN WaitForPackets)
|
|
{
|
|
BOOLEAN TimerCancelled;
|
|
|
|
/* Attempt to disable interrupts to complete more quickly */
|
|
DC_WRITE(Adapter, DcCsr7_IrqMask, 0);
|
|
|
|
/* Prevent DPCs from executing and stop accepting incoming packets */
|
|
NdisAcquireSpinLock(&Adapter->SendLock);
|
|
Adapter->Flags &= ~DC_ACTIVE;
|
|
NdisReleaseSpinLock(&Adapter->SendLock);
|
|
|
|
NdisMCancelTimer(&Adapter->MediaMonitorTimer, &TimerCancelled);
|
|
|
|
/* Wait for any DPCs to complete */
|
|
KeFlushQueuedDpcs();
|
|
|
|
/* Disable interrupts */
|
|
DC_WRITE(Adapter, DcCsr7_IrqMask, 0);
|
|
|
|
/* Wait for completion of TX/RX and stop the DMA engine inside the NIC */
|
|
DcStopTxRxProcess(Adapter);
|
|
Adapter->OpMode &= ~(DC_OPMODE_RX_ENABLE | DC_OPMODE_TX_ENABLE);
|
|
|
|
DcFlushTransmitQueue(Adapter);
|
|
|
|
/* Wait for the packets to be returned to the driver */
|
|
if (WaitForPackets)
|
|
{
|
|
DcStopReceivePath(Adapter);
|
|
}
|
|
|
|
/* Make sure there is no pending OID request */
|
|
if (Adapter->OidPending)
|
|
{
|
|
NdisMSetInformationComplete(Adapter->AdapterHandle, NDIS_STATUS_SUCCESS);
|
|
|
|
Adapter->OidPending = FALSE;
|
|
}
|
|
}
|
|
|
|
CODE_SEG("PAGE")
|
|
VOID
|
|
DcStartAdapter(
|
|
_In_ PDC21X4_ADAPTER Adapter)
|
|
{
|
|
PAGED_CODE();
|
|
|
|
/* Enable interrupts */
|
|
_InterlockedExchange((PLONG)&Adapter->CurrentInterruptMask, Adapter->InterruptMask);
|
|
DC_WRITE(Adapter, DcCsr7_IrqMask, Adapter->InterruptMask);
|
|
|
|
Adapter->Flags |= DC_ACTIVE;
|
|
|
|
/* Start the RX process */
|
|
Adapter->OpMode |= DC_OPMODE_RX_ENABLE;
|
|
DC_WRITE(Adapter, DcCsr6_OpMode, Adapter->OpMode);
|
|
|
|
/* Start the media monitor, wait the selected media to become ready */
|
|
NdisMSetTimer(&Adapter->MediaMonitorTimer, 2400);
|
|
}
|
|
|
|
CODE_SEG("PAGE")
|
|
VOID
|
|
NTAPI
|
|
DcResetWorker(
|
|
_In_ PNDIS_WORK_ITEM WorkItem,
|
|
_In_opt_ PVOID Context)
|
|
{
|
|
PDC21X4_ADAPTER Adapter = Context;
|
|
NDIS_STATUS Status;
|
|
ULONG InterruptStatus;
|
|
LONG ResetReason;
|
|
|
|
UNREFERENCED_PARAMETER(WorkItem);
|
|
|
|
PAGED_CODE();
|
|
|
|
Status = NDIS_STATUS_SUCCESS;
|
|
|
|
/* Check if the device is present */
|
|
InterruptStatus = DC_READ(Adapter, DcCsr5_Status);
|
|
if (InterruptStatus == 0xFFFFFFFF)
|
|
{
|
|
ERR("Hardware is gone...\n");
|
|
|
|
/* Remove this adapter */
|
|
NdisMRemoveMiniport(Adapter->AdapterHandle);
|
|
|
|
Status = NDIS_STATUS_HARD_ERRORS;
|
|
goto Done;
|
|
}
|
|
|
|
DcStopAdapter(Adapter, FALSE);
|
|
|
|
if (Adapter->LinkUp)
|
|
{
|
|
Adapter->LinkUp = FALSE;
|
|
|
|
NdisMIndicateStatus(Adapter->AdapterHandle,
|
|
NDIS_STATUS_MEDIA_DISCONNECT,
|
|
NULL,
|
|
0);
|
|
NdisMIndicateStatusComplete(Adapter->AdapterHandle);
|
|
}
|
|
|
|
DcSetupAdapter(Adapter);
|
|
|
|
DcStartAdapter(Adapter);
|
|
|
|
Done:
|
|
ResetReason = _InterlockedExchange(&Adapter->ResetLock, 0);
|
|
|
|
/* Complete the pending reset request */
|
|
if (ResetReason == 1)
|
|
{
|
|
NdisMResetComplete(Adapter->AdapterHandle, Status, FALSE);
|
|
}
|
|
}
|
|
|
|
VOID
|
|
NTAPI
|
|
DcTransmitTimeoutRecoveryWorker(
|
|
_In_ PNDIS_WORK_ITEM WorkItem,
|
|
_In_opt_ PVOID Context)
|
|
{
|
|
PDC21X4_ADAPTER Adapter = Context;
|
|
|
|
UNREFERENCED_PARAMETER(WorkItem);
|
|
|
|
NdisAcquireSpinLock(&Adapter->ModeLock);
|
|
|
|
DcStopTxRxProcess(Adapter);
|
|
DC_WRITE(Adapter, DcCsr6_OpMode, Adapter->OpMode);
|
|
|
|
NdisDprAcquireSpinLock(&Adapter->SendLock);
|
|
|
|
DC_WRITE(Adapter, DcCsr1_TxPoll, DC_TX_POLL_DOORBELL);
|
|
|
|
NdisDprReleaseSpinLock(&Adapter->SendLock);
|
|
|
|
NdisReleaseSpinLock(&Adapter->ModeLock);
|
|
}
|
|
|
|
static
|
|
BOOLEAN
|
|
NTAPI
|
|
DcCheckForHang(
|
|
_In_ NDIS_HANDLE MiniportAdapterContext)
|
|
{
|
|
PDC21X4_ADAPTER Adapter = (PDC21X4_ADAPTER)MiniportAdapterContext;
|
|
ULONG TcbCompleted;
|
|
BOOLEAN TxHang = FALSE;
|
|
|
|
if (!(Adapter->Flags & DC_ACTIVE))
|
|
return FALSE;
|
|
|
|
NdisDprAcquireSpinLock(&Adapter->SendLock);
|
|
|
|
if (Adapter->TcbSlots != (DC_TRANSMIT_BLOCKS - DC_TCB_RESERVE))
|
|
{
|
|
TcbCompleted = Adapter->TcbCompleted;
|
|
TxHang = (TcbCompleted == Adapter->LastTcbCompleted);
|
|
Adapter->LastTcbCompleted = TcbCompleted;
|
|
}
|
|
|
|
NdisDprReleaseSpinLock(&Adapter->SendLock);
|
|
|
|
if (TxHang)
|
|
{
|
|
WARN("Transmit timeout, CSR12 %08lx, CSR5 %08lx\n",
|
|
DC_READ(Adapter, DcCsr12_SiaStatus),
|
|
DC_READ(Adapter, DcCsr5_Status));
|
|
|
|
NdisScheduleWorkItem(&Adapter->TxRecoveryWorkItem);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static
|
|
NDIS_STATUS
|
|
NTAPI
|
|
DcReset(
|
|
_Out_ PBOOLEAN AddressingReset,
|
|
_In_ NDIS_HANDLE MiniportAdapterContext)
|
|
{
|
|
PDC21X4_ADAPTER Adapter = (PDC21X4_ADAPTER)MiniportAdapterContext;
|
|
|
|
WARN("Called\n");
|
|
|
|
if (_InterlockedCompareExchange(&Adapter->ResetLock, 1, 0))
|
|
{
|
|
return NDIS_STATUS_RESET_IN_PROGRESS;
|
|
}
|
|
|
|
NdisScheduleWorkItem(&Adapter->ResetWorkItem);
|
|
|
|
return NDIS_STATUS_PENDING;
|
|
}
|
|
|
|
static
|
|
CODE_SEG("PAGE")
|
|
VOID
|
|
NTAPI
|
|
DcHalt(
|
|
_In_ NDIS_HANDLE MiniportAdapterContext)
|
|
{
|
|
PDC21X4_ADAPTER Adapter = (PDC21X4_ADAPTER)MiniportAdapterContext;
|
|
|
|
PAGED_CODE();
|
|
|
|
INFO("Called\n");
|
|
|
|
DcStopAdapter(Adapter, TRUE);
|
|
|
|
DcDisableHw(Adapter);
|
|
|
|
DcFreeAdapter(Adapter);
|
|
}
|
|
|
|
static
|
|
VOID
|
|
NTAPI
|
|
DcShutdown(
|
|
_In_ NDIS_HANDLE MiniportAdapterContext)
|
|
{
|
|
PDC21X4_ADAPTER Adapter = (PDC21X4_ADAPTER)MiniportAdapterContext;
|
|
|
|
INFO("Called\n");
|
|
|
|
DcDisableHw(Adapter);
|
|
}
|
|
|
|
CODE_SEG("INIT")
|
|
NTSTATUS
|
|
NTAPI
|
|
DriverEntry(
|
|
_In_ PDRIVER_OBJECT DriverObject,
|
|
_In_ PUNICODE_STRING RegistryPath)
|
|
{
|
|
NDIS_HANDLE WrapperHandle;
|
|
NDIS_STATUS Status;
|
|
NDIS_MINIPORT_CHARACTERISTICS Characteristics = { 0 };
|
|
|
|
INFO("Called\n");
|
|
|
|
NdisMInitializeWrapper(&WrapperHandle, DriverObject, RegistryPath, NULL);
|
|
if (!WrapperHandle)
|
|
return NDIS_STATUS_FAILURE;
|
|
|
|
Characteristics.MajorNdisVersion = NDIS_MINIPORT_MAJOR_VERSION;
|
|
Characteristics.MinorNdisVersion = NDIS_MINIPORT_MINOR_VERSION;
|
|
Characteristics.CheckForHangHandler = DcCheckForHang;
|
|
Characteristics.HaltHandler = DcHalt;
|
|
Characteristics.HandleInterruptHandler = DcHandleInterrupt;
|
|
Characteristics.InitializeHandler = DcInitialize;
|
|
Characteristics.ISRHandler = DcIsr;
|
|
Characteristics.QueryInformationHandler = DcQueryInformation;
|
|
Characteristics.ResetHandler = DcReset;
|
|
Characteristics.SetInformationHandler = DcSetInformation;
|
|
Characteristics.ReturnPacketHandler = DcReturnPacket;
|
|
Characteristics.SendPacketsHandler = DcSendPackets;
|
|
Characteristics.CancelSendPacketsHandler = DcCancelSendPackets;
|
|
Characteristics.AdapterShutdownHandler = DcShutdown;
|
|
|
|
Status = NdisMRegisterMiniport(WrapperHandle, &Characteristics, sizeof(Characteristics));
|
|
if (Status != NDIS_STATUS_SUCCESS)
|
|
{
|
|
NdisTerminateWrapper(WrapperHandle, NULL);
|
|
return Status;
|
|
}
|
|
|
|
InitializeListHead(&SRompAdapterList);
|
|
|
|
return NDIS_STATUS_SUCCESS;
|
|
}
|