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1474 lines
54 KiB
C
1474 lines
54 KiB
C
/*
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* This file contains NDIS5.X Implementation of adapter driver procedures.
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*
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* Copyright (c) 2008-2017 Red Hat, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met :
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and / or other materials provided with the distribution.
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* 3. Neither the names of the copyright holders nor the names of their contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED.IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "ParaNdis5.h"
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#ifdef WPP_EVENT_TRACING
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#include "ParaNdis5-Impl.tmh"
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#endif
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/**********************************************************
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Per-packet information holder
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***********************************************************/
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#define SEND_ENTRY_FLAG_READY 0x0001
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#define SEND_ENTRY_TSO_USED 0x0002
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#define SEND_ENTRY_NO_INDIRECT 0x0004
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#define SEND_ENTRY_TCP_CS 0x0008
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#define SEND_ENTRY_UDP_CS 0x0010
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#define SEND_ENTRY_IP_CS 0x0020
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typedef struct _tagSendEntry
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{
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LIST_ENTRY list;
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PNDIS_PACKET packet;
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ULONG flags;
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ULONG ipTransferUnit;
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union
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{
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ULONG PriorityDataLong;
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UCHAR PriorityData[4];
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};
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} tSendEntry;
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/**********************************************************
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This defines field in NDIS_PACKET structure to use as holder
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of our reference pointer for indicated packets
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***********************************************************/
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#define IDXTOUSE 0
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#define REF_MINIPORT(Packet) ((PVOID *)(Packet->MiniportReservedEx + IDXTOUSE * sizeof(PVOID)))
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/**********************************************************
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Memory allocation procedure
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Parameters:
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context(not used)
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ULONG ulRequiredSize size of block to allocate
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Return value:
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PVOID pointer to block or NULL if failed
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***********************************************************/
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PVOID ParaNdis_AllocateMemory(PARANDIS_ADAPTER *pContext, ULONG ulRequiredSize)
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{
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PVOID p;
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UNREFERENCED_PARAMETER(pContext);
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if (NDIS_STATUS_SUCCESS != NdisAllocateMemoryWithTag(&p, ulRequiredSize, PARANDIS_MEMORY_TAG))
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p = NULL;
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if (!p)
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{
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DPrintf(0, ("[%s] failed (%d bytes)", __FUNCTION__, ulRequiredSize));
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}
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return p;
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}
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/**********************************************************
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Implementation of "open adapter configuration" operation
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Parameters:
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context
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Return value:
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NDIS_HANDLE Handle to open configuration or NULL, if failed
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***********************************************************/
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NDIS_HANDLE ParaNdis_OpenNICConfiguration(PARANDIS_ADAPTER *pContext)
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{
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NDIS_STATUS status;
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NDIS_HANDLE cfg;
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DEBUG_ENTRY(2);
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NdisOpenConfiguration(&status, &cfg, pContext->WrapperConfigurationHandle);
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if (status != NDIS_STATUS_SUCCESS)
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cfg = NULL;
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DEBUG_EXIT_STATUS(0, status);
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return cfg;
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}
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void ParaNdis_RestoreDeviceConfigurationAfterReset(
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PARANDIS_ADAPTER *pContext)
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{
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}
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/**********************************************************
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Indicates connect/disconnect events
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Parameters:
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context
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BOOLEAN bConnected 1/0 connect/disconnect
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***********************************************************/
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VOID ParaNdis_IndicateConnect(PARANDIS_ADAPTER *pContext, BOOLEAN bConnected, BOOLEAN bForce)
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{
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// indicate disconnect always
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if (bConnected != pContext->bConnected || bForce)
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{
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pContext->bConnected = bConnected;
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DPrintf(0, ("Indicating %sconnect", bConnected ? "" : "dis"));
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ParaNdis_DebugHistory(pContext, hopConnectIndication, NULL, bConnected, 0, 0);
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NdisMIndicateStatus(
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pContext->MiniportHandle,
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bConnected ? NDIS_STATUS_MEDIA_CONNECT : NDIS_STATUS_MEDIA_DISCONNECT,
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0,
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0);
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NdisMIndicateStatusComplete(pContext->MiniportHandle);
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}
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}
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VOID ParaNdis_SetPowerState(PARANDIS_ADAPTER *pContext, NDIS_DEVICE_POWER_STATE newState)
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{
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//NDIS_DEVICE_POWER_STATE prev = pContext->powerState;
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pContext->powerState = newState;
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}
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/**********************************************************
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Callback of timer for connect indication, if used
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Parameters:
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context (on FunctionContext)
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all the rest are irrelevant
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***********************************************************/
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static VOID NTAPI OnConnectTimer(
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IN PVOID SystemSpecific1,
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IN PVOID FunctionContext,
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IN PVOID SystemSpecific2,
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IN PVOID SystemSpecific3
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)
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{
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PARANDIS_ADAPTER *pContext = (PARANDIS_ADAPTER *)FunctionContext;
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ParaNdis_ReportLinkStatus(pContext, FALSE);
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}
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/**********************************************************
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NDIS5 implementation of shared memory allocation
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Parameters:
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context
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tCompletePhysicalAddress *pAddresses
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the structure accumulates all our knowledge
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about the allocation (size, addresses, cacheability etc)
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Return value:
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TRUE if the allocation was successful
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***********************************************************/
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BOOLEAN ParaNdis_InitialAllocatePhysicalMemory(
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PARANDIS_ADAPTER *pContext,
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tCompletePhysicalAddress *pAddresses)
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{
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NdisMAllocateSharedMemory(
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pContext->MiniportHandle,
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pAddresses->size,
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(BOOLEAN)pAddresses->IsCached,
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&pAddresses->Virtual,
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&pAddresses->Physical);
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return pAddresses->Virtual != NULL;
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}
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/**********************************************************
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Callback of timer for pending events cleanup after regular DPC processing
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Parameters:
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context (on FunctionContext)
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all the rest are irrelevant
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***********************************************************/
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static VOID NTAPI OnDPCPostProcessTimer(
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IN PVOID SystemSpecific1,
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IN PVOID FunctionContext,
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IN PVOID SystemSpecific2,
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IN PVOID SystemSpecific3
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)
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{
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PARANDIS_ADAPTER *pContext = (PARANDIS_ADAPTER *)FunctionContext;
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ULONG requiresProcessing;
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requiresProcessing = ParaNdis_DPCWorkBody(pContext, PARANDIS_UNLIMITED_PACKETS_TO_INDICATE);
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if (requiresProcessing)
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{
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// we need to request additional DPC
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InterlockedOr(&pContext->InterruptStatus, requiresProcessing);
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NdisSetTimer(&pContext->DPCPostProcessTimer, 10);
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}
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}
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/**********************************************************
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NDIS5 implementation of shared memory freeing
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Parameters:
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context
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tCompletePhysicalAddress *pAddresses
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the structure accumulates all our knowledge
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about the allocation (size, addresses, cacheability etc)
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filled by ParaNdis_InitialAllocatePhysicalMemory
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***********************************************************/
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VOID ParaNdis_FreePhysicalMemory(
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PARANDIS_ADAPTER *pContext,
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tCompletePhysicalAddress *pAddresses)
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{
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NdisMFreeSharedMemory(
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pContext->MiniportHandle,
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pAddresses->size,
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(BOOLEAN)pAddresses->IsCached,
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pAddresses->Virtual,
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pAddresses->Physical);
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}
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static void DebugParseOffloadBits()
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{
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NDIS_TCP_IP_CHECKSUM_PACKET_INFO info;
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tChecksumCheckResult res;
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ULONG val = 1;
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int level = 1;
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while (val)
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{
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info.Value = val;
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if (info.Receive.NdisPacketIpChecksumFailed) DPrintf(level, ("W.%X=IPCS failed", val));
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if (info.Receive.NdisPacketIpChecksumSucceeded) DPrintf(level, ("W.%X=IPCS OK", val));
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if (info.Receive.NdisPacketTcpChecksumFailed) DPrintf(level, ("W.%X=TCPCS failed", val));
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if (info.Receive.NdisPacketTcpChecksumSucceeded) DPrintf(level, ("W.%X=TCPCS OK", val));
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if (info.Receive.NdisPacketUdpChecksumFailed) DPrintf(level, ("W.%X=UDPCS failed", val));
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if (info.Receive.NdisPacketUdpChecksumSucceeded) DPrintf(level, ("W.%X=UDPCS OK", val));
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val = val << 1;
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}
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val = 1;
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while (val)
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{
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res.value = val;
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if (res.flags.IpFailed) DPrintf(level, ("C.%X=IPCS failed", val));
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if (res.flags.IpOK) DPrintf(level, ("C.%X=IPCS OK", val));
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if (res.flags.TcpFailed) DPrintf(level, ("C.%X=TCPCS failed", val));
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if (res.flags.TcpOK) DPrintf(level, ("C.%X=TCPCS OK", val));
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if (res.flags.UdpFailed) DPrintf(level, ("C.%X=UDPCS failed", val));
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if (res.flags.UdpOK) DPrintf(level, ("C.%X=UDPCS OK", val));
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val = val << 1;
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}
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}
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/**********************************************************
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Procedure for NDIS5 specific initialization:
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register interrupt handler
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allocate pool of packets to indicate
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allocate pool of buffers to indicate
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initialize halt event
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Parameters:
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context
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Return value:
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SUCCESS or failure code
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***********************************************************/
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NDIS_STATUS NTAPI ParaNdis_FinishSpecificInitialization(
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PARANDIS_ADAPTER *pContext)
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{
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NDIS_STATUS status;
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UINT nPackets = pContext->NetMaxReceiveBuffers * 2;
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DEBUG_ENTRY(2);
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NdisInitializeEvent(&pContext->HaltEvent);
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InitializeListHead(&pContext->SendQueue);
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InitializeListHead(&pContext->TxWaitingList);
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NdisInitializeTimer(&pContext->ConnectTimer, OnConnectTimer, pContext);
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NdisInitializeTimer(&pContext->DPCPostProcessTimer, OnDPCPostProcessTimer, pContext);
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status = NdisMRegisterInterrupt(
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&pContext->Interrupt,
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pContext->MiniportHandle,
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pContext->AdapterResources.Vector,
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pContext->AdapterResources.Level,
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TRUE,
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TRUE,
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NdisInterruptLevelSensitive);
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if (status == NDIS_STATUS_SUCCESS)
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{
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NdisAllocatePacketPool(
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&status,
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&pContext->PacketPool,
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nPackets,
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PROTOCOL_RESERVED_SIZE_IN_PACKET );
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}
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if (status == NDIS_STATUS_SUCCESS)
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{
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NdisAllocateBufferPool(
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&status,
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&pContext->BuffersPool,
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nPackets);
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}
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#if !DO_MAP_REGISTERS
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if (status == NDIS_STATUS_SUCCESS)
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{
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status = NdisMInitializeScatterGatherDma(
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pContext->MiniportHandle,
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TRUE,
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0x10000);
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pContext->bDmaInitialized = status == NDIS_STATUS_SUCCESS;
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}
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#else
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if (status == NDIS_STATUS_SUCCESS)
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{
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status = NdisMAllocateMapRegisters(
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pContext->MiniportHandle,
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0,
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NDIS_DMA_32BITS,
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64,
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PAGE_SIZE);
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pContext->bDmaInitialized = status == NDIS_STATUS_SUCCESS;
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}
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#endif
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if (status == NDIS_STATUS_SUCCESS)
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{
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DebugParseOffloadBits();
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}
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DEBUG_EXIT_STATUS(status ? 0 : 2, status);
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return status;
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}
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/**********************************************************
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Procedure of NDIS5-specific cleanup:
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deregister interrupt
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free buffer and packet pool
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Parameters:
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context
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***********************************************************/
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VOID ParaNdis_FinalizeCleanup(PARANDIS_ADAPTER *pContext)
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{
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if (pContext->Interrupt.InterruptObject)
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{
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NdisMDeregisterInterrupt(&pContext->Interrupt);
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}
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if (pContext->BuffersPool)
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{
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NdisFreeBufferPool(pContext->BuffersPool);
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}
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if (pContext->PacketPool)
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{
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NdisFreePacketPool(pContext->PacketPool);
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}
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#if DO_MAP_REGISTERS
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if (pContext->bDmaInitialized)
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{
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NdisMFreeMapRegisters(pContext->MiniportHandle);
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}
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#endif
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}
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static FORCEINLINE ULONG MaxNdisBufferDataSize(PARANDIS_ADAPTER *pContext, pIONetDescriptor pBufferDesc)
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{
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ULONG size = pBufferDesc->DataInfo.size;
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if (pContext->bUseMergedBuffers) size -= pContext->nVirtioHeaderSize;
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return size;
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}
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/**********************************************************
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NDIS5-specific procedure for binding RX buffer to
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NDIS_PACKET and NDIS_BUFFER
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Parameters:
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context
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pIONetDescriptor pBuffersDesc VirtIO buffer descriptor
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Return value:
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TRUE, if bound successfully
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FALSE, if no buffer or packet can be allocated
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***********************************************************/
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BOOLEAN ParaNdis_BindBufferToPacket(
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PARANDIS_ADAPTER *pContext,
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pIONetDescriptor pBufferDesc)
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{
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NDIS_STATUS status;
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PNDIS_BUFFER pBuffer = NULL;
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PNDIS_PACKET Packet = NULL;
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NdisAllocatePacket(&status, &Packet, pContext->PacketPool);
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if (status == NDIS_STATUS_SUCCESS)
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{
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NdisReinitializePacket(Packet);
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NdisAllocateBuffer(
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&status,
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&pBuffer,
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pContext->BuffersPool,
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RtlOffsetToPointer(pBufferDesc->DataInfo.Virtual, pContext->bUseMergedBuffers ? pContext->nVirtioHeaderSize : 0),
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MaxNdisBufferDataSize(pContext, pBufferDesc));
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}
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if (status == NDIS_STATUS_SUCCESS)
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{
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PNDIS_PACKET_OOB_DATA pOOB = NDIS_OOB_DATA_FROM_PACKET(Packet);
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NdisZeroMemory(pOOB, sizeof(NDIS_PACKET_OOB_DATA));
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NDIS_SET_PACKET_HEADER_SIZE(Packet, ETH_HEADER_SIZE);
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NdisChainBufferAtFront(Packet, pBuffer);
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pBufferDesc->pHolder = Packet;
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}
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else
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{
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if (pBuffer) NdisFreeBuffer(pBuffer);
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if (Packet) NdisFreePacket(Packet);
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}
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return status == NDIS_STATUS_SUCCESS;
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}
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/**********************************************************
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NDIS5-specific procedure for unbinding
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previously bound RX buffer from it's NDIS_PACKET and NDIS_BUFFER
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Parameters:
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context
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pIONetDescriptor pBuffersDesc VirtIO buffer descriptor
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***********************************************************/
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void ParaNdis_UnbindBufferFromPacket(
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PARANDIS_ADAPTER *pContext,
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pIONetDescriptor pBufferDesc)
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{
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if (pBufferDesc->pHolder)
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{
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PNDIS_BUFFER pBuffer = NULL;
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PNDIS_PACKET Packet = pBufferDesc->pHolder;
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pBufferDesc->pHolder = NULL;
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NdisUnchainBufferAtFront(Packet, &pBuffer);
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if (pBuffer)
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{
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NdisAdjustBufferLength(pBuffer, MaxNdisBufferDataSize(pContext, pBufferDesc));
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NdisFreeBuffer(pBuffer);
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}
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NdisFreePacket(Packet);
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}
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}
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/**********************************************************
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NDIS5-specific procedure to indicate received packets
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Parameters:
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context
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pIONetDescriptor pBuffersDescriptor - VirtIO buffer descriptor of data buffer
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PVOID dataBuffer - data buffer to pass to network stack
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PULONG pLength - size of received packet.
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BOOLEAN bPrepareOnly - only return NBL for further indication in batch
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Return value:
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TRUE is packet indicated
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FALSE if not (in this case, the descriptor should be freed now)
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If priority header is in the packet. it will be removed and *pLength decreased
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***********************************************************/
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tPacketIndicationType ParaNdis_IndicateReceivedPacket(
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PARANDIS_ADAPTER *pContext,
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PVOID dataBuffer,
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PULONG pLength,
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BOOLEAN bPrepareOnly,
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pIONetDescriptor pBuffersDesc)
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{
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PNDIS_BUFFER pBuffer = NULL;
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PNDIS_BUFFER pNoBuffer = NULL;
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PNDIS_PACKET Packet = pBuffersDesc->pHolder;
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ULONG length = *pLength;
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if (Packet) NdisUnchainBufferAtFront(Packet, &pBuffer);
|
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if (Packet) NdisUnchainBufferAtFront(Packet, &pNoBuffer);
|
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if (pBuffer)
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{
|
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UINT uTotalLength;
|
|
NDIS_PACKET_8021Q_INFO qInfo;
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qInfo.Value = NULL;
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if ((pContext->ulPriorityVlanSetting && length > (ETH_PRIORITY_HEADER_OFFSET + ETH_PRIORITY_HEADER_SIZE)) ||
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length > pContext->MaxPacketSize.nMaxFullSizeOS)
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{
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PUCHAR pPriority = (PUCHAR)dataBuffer + ETH_PRIORITY_HEADER_OFFSET;
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if (ETH_HAS_PRIO_HEADER(dataBuffer))
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{
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if (IsPrioritySupported(pContext))
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qInfo.TagHeader.UserPriority = (pPriority[2] & 0xE0) >> 5;
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if (IsVlanSupported(pContext))
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{
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qInfo.TagHeader.VlanId = (((USHORT)(pPriority[2] & 0x0F)) << 8) | pPriority[3];
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if (pContext->VlanId && pContext->VlanId != qInfo.TagHeader.VlanId)
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{
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DPrintf(0, ("[%s] Failing unexpected VlanID %d", __FUNCTION__, qInfo.TagHeader.VlanId));
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pContext->extraStatistics.framesFilteredOut++;
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pBuffer = NULL;
|
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}
|
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}
|
|
RtlMoveMemory(
|
|
pPriority,
|
|
pPriority + ETH_PRIORITY_HEADER_SIZE,
|
|
length - ETH_PRIORITY_HEADER_OFFSET - ETH_PRIORITY_HEADER_SIZE);
|
|
length -= ETH_PRIORITY_HEADER_SIZE;
|
|
if (length > pContext->MaxPacketSize.nMaxFullSizeOS)
|
|
{
|
|
DPrintf(0, ("[%s] Can not indicate up packet of %d", __FUNCTION__, length));
|
|
pBuffer = NULL;
|
|
}
|
|
DPrintf(1, ("[%s] Found priority data %p", __FUNCTION__, qInfo.Value));
|
|
pContext->extraStatistics.framesRxPriority++;
|
|
}
|
|
}
|
|
|
|
if (pBuffer)
|
|
{
|
|
PVOID headerBuffer = pContext->bUseMergedBuffers ? pBuffersDesc->DataInfo.Virtual:pBuffersDesc->HeaderInfo.Virtual;
|
|
virtio_net_hdr_basic *pHeader = (virtio_net_hdr_basic *)headerBuffer;
|
|
tChecksumCheckResult csRes;
|
|
NDIS_PER_PACKET_INFO_FROM_PACKET(Packet, Ieee8021QInfo) = qInfo.Value;
|
|
NDIS_SET_PACKET_STATUS(Packet, STATUS_SUCCESS);
|
|
ParaNdis_PadPacketReceived(dataBuffer, &length);
|
|
NdisAdjustBufferLength(pBuffer, length);
|
|
NdisChainBufferAtFront(Packet, pBuffer);
|
|
NdisQueryPacket(Packet, NULL, NULL, NULL, &uTotalLength);
|
|
*REF_MINIPORT(Packet) = pBuffersDesc;
|
|
csRes = ParaNdis_CheckRxChecksum(pContext, pHeader->flags, dataBuffer, length);
|
|
if (csRes.value)
|
|
{
|
|
NDIS_TCP_IP_CHECKSUM_PACKET_INFO qCSInfo;
|
|
qCSInfo.Value = 0;
|
|
qCSInfo.Receive.NdisPacketIpChecksumFailed = csRes.flags.IpFailed;
|
|
qCSInfo.Receive.NdisPacketIpChecksumSucceeded = csRes.flags.IpOK;
|
|
qCSInfo.Receive.NdisPacketTcpChecksumFailed = csRes.flags.TcpFailed;
|
|
qCSInfo.Receive.NdisPacketTcpChecksumSucceeded = csRes.flags.TcpOK;
|
|
qCSInfo.Receive.NdisPacketUdpChecksumFailed = csRes.flags.UdpFailed;
|
|
qCSInfo.Receive.NdisPacketUdpChecksumSucceeded = csRes.flags.UdpOK;
|
|
NDIS_PER_PACKET_INFO_FROM_PACKET(Packet, TcpIpChecksumPacketInfo) = (PVOID) (ULONG_PTR) qCSInfo.Value;
|
|
DPrintf(1, ("Reporting CS %X->%X", csRes.value, qCSInfo.Value));
|
|
}
|
|
|
|
DPrintf(4, ("[%s] buffer %p(%d b.)", __FUNCTION__, pBuffersDesc, length));
|
|
if (!bPrepareOnly)
|
|
{
|
|
NdisMIndicateReceivePacket(
|
|
pContext->MiniportHandle,
|
|
&Packet,
|
|
1);
|
|
}
|
|
}
|
|
*pLength = length;
|
|
}
|
|
if (!pBuffer)
|
|
{
|
|
DPrintf(0, ("[%s] Error: %p(%d b.) with packet %p", __FUNCTION__,
|
|
pBuffersDesc, length, Packet));
|
|
Packet = NULL;
|
|
}
|
|
if (pNoBuffer)
|
|
{
|
|
DPrintf(0, ("[%s] Error: %p(%d b.) with packet %p, buf %p,%p", __FUNCTION__,
|
|
pBuffersDesc, length, Packet, pBuffer, pNoBuffer));
|
|
}
|
|
return Packet;
|
|
}
|
|
|
|
VOID ParaNdis_IndicateReceivedBatch(
|
|
PARANDIS_ADAPTER *pContext,
|
|
tPacketIndicationType *pBatch,
|
|
ULONG nofPackets)
|
|
{
|
|
NdisMIndicateReceivePacket(
|
|
pContext->MiniportHandle,
|
|
pBatch,
|
|
nofPackets);
|
|
}
|
|
|
|
static FORCEINLINE void GET_NUMBER_OF_SG_ELEMENTS(PNDIS_PACKET Packet, UINT *pNum)
|
|
{
|
|
PSCATTER_GATHER_LIST pSGList;
|
|
pSGList = NDIS_PER_PACKET_INFO_FROM_PACKET(Packet, ScatterGatherListPacketInfo);
|
|
if (pSGList)
|
|
{
|
|
*pNum = pSGList->NumberOfElements;
|
|
}
|
|
}
|
|
|
|
/**********************************************************
|
|
Complete TX packets to NDIS with status, indicated inside packet
|
|
Parameters:
|
|
context
|
|
PNDIS_PACKET Packet packet to complete
|
|
***********************************************************/
|
|
static void CompletePacket(PARANDIS_ADAPTER *pContext, PNDIS_PACKET Packet)
|
|
{
|
|
LONG lRestToReturn;
|
|
NDIS_STATUS status = NDIS_GET_PACKET_STATUS(Packet);
|
|
lRestToReturn = NdisInterlockedDecrement(&pContext->NetTxPacketsToReturn);
|
|
ParaNdis_DebugHistory(pContext, hopSendComplete, Packet, 0, lRestToReturn, status);
|
|
NdisMSendComplete(pContext->MiniportHandle, Packet, status);
|
|
}
|
|
|
|
/**********************************************************
|
|
Copy data from specified packet to VirtIO buffer, minimum 60 bytes
|
|
Parameters:
|
|
PNDIS_PACKET Packet packet to copy data from
|
|
PVOID dest destination to copy
|
|
ULONG maxSize maximal size of destination
|
|
Return value:
|
|
size = number of bytes copied
|
|
if 0, the packet is not transmitted and should be dropped
|
|
( should never happen)
|
|
request
|
|
***********************************************************/
|
|
tCopyPacketResult ParaNdis_PacketCopier(
|
|
PNDIS_PACKET Packet, PVOID dest, ULONG maxSize, PVOID refValue, BOOLEAN bPreview)
|
|
{
|
|
PNDIS_BUFFER pBuffer;
|
|
ULONG PriorityDataLong = ((tSendEntry *)refValue)->PriorityDataLong;
|
|
tCopyPacketResult result;
|
|
/* the copier called also for getting Ethernet header
|
|
for statistics, when the transfer uses SG table */
|
|
UINT uLength = 0;
|
|
ULONG nCopied = 0;
|
|
ULONG ulToCopy = 0;
|
|
if (bPreview) PriorityDataLong = 0;
|
|
NdisQueryPacket(Packet,
|
|
NULL,
|
|
NULL,
|
|
&pBuffer,
|
|
(PUINT)&ulToCopy);
|
|
|
|
if (ulToCopy > maxSize) ulToCopy = bPreview ? maxSize : 0;
|
|
while (pBuffer && ulToCopy)
|
|
{
|
|
PVOID VirtualAddress = NULL;
|
|
NdisQueryBufferSafe(pBuffer,
|
|
&VirtualAddress,
|
|
&uLength,
|
|
NormalPagePriority);
|
|
if (!VirtualAddress)
|
|
{
|
|
/* the packet copy failed */
|
|
nCopied = 0;
|
|
break;
|
|
}
|
|
if(uLength)
|
|
{
|
|
// Copy the data.
|
|
if (uLength > ulToCopy) uLength = ulToCopy;
|
|
ulToCopy -= uLength;
|
|
if ((PriorityDataLong & 0xFFFF) &&
|
|
nCopied < ETH_PRIORITY_HEADER_OFFSET &&
|
|
(nCopied + uLength) >= ETH_PRIORITY_HEADER_OFFSET)
|
|
{
|
|
ULONG ulCopyNow = ETH_PRIORITY_HEADER_OFFSET - nCopied;
|
|
NdisMoveMemory(dest, VirtualAddress, ulCopyNow);
|
|
dest = (PUCHAR)dest + ulCopyNow;
|
|
VirtualAddress = (PUCHAR)VirtualAddress + ulCopyNow;
|
|
NdisMoveMemory(dest, &PriorityDataLong, 4);
|
|
nCopied += 4;
|
|
dest = (PCHAR)dest + 4;
|
|
ulCopyNow = uLength - ulCopyNow;
|
|
if (ulCopyNow) NdisMoveMemory(dest, VirtualAddress, ulCopyNow);
|
|
dest = (PCHAR)dest + ulCopyNow;
|
|
nCopied += uLength;
|
|
}
|
|
else
|
|
{
|
|
NdisMoveMemory(dest, VirtualAddress, uLength);
|
|
nCopied += uLength;
|
|
dest = (PUCHAR)dest + uLength;
|
|
}
|
|
}
|
|
NdisGetNextBuffer(pBuffer, &pBuffer);
|
|
}
|
|
|
|
DEBUG_EXIT_STATUS(4, nCopied);
|
|
result.size = nCopied;
|
|
return result;
|
|
}
|
|
|
|
|
|
/**********************************************************
|
|
Callback on finished Tx descriptor
|
|
***********************************************************/
|
|
VOID ParaNdis_OnTransmitBufferReleased(PARANDIS_ADAPTER *pContext, IONetDescriptor *pDesc)
|
|
{
|
|
tSendEntry *pEntry = (tSendEntry *)pDesc->ReferenceValue;
|
|
if (pEntry)
|
|
{
|
|
DPrintf(2, ("[%s] Entry %p (packet %p, %d buffers) ready!", __FUNCTION__, pEntry, pEntry->packet, pDesc->nofUsedBuffers));
|
|
pEntry->flags |= SEND_ENTRY_FLAG_READY;
|
|
pDesc->ReferenceValue = NULL;
|
|
ParaNdis_DebugHistory(pContext, hopBufferSent, pEntry->packet, 0, pContext->nofFreeHardwareBuffers, pContext->nofFreeTxDescriptors);
|
|
}
|
|
else
|
|
{
|
|
ParaNdis_DebugHistory(pContext, hopBufferSent, NULL, 0, pContext->nofFreeHardwareBuffers, pContext->nofFreeTxDescriptors);
|
|
DPrintf(0, ("[%s] ERROR: Send Entry not set!", __FUNCTION__));
|
|
}
|
|
}
|
|
|
|
|
|
static FORCEINLINE ULONG CalculateTotalOffloadSize(
|
|
ULONG packetSize,
|
|
ULONG mss,
|
|
ULONG ipheaderOffset,
|
|
ULONG maxPossiblePacketSize,
|
|
tTcpIpPacketParsingResult packetReview)
|
|
{
|
|
ULONG ul = 0;
|
|
ULONG tcpipHeaders = packetReview.XxpIpHeaderSize;
|
|
ULONG allHeaders = tcpipHeaders + ipheaderOffset;
|
|
if (tcpipHeaders && (mss + allHeaders) <= maxPossiblePacketSize)
|
|
{
|
|
ULONG nFragments = (packetSize - allHeaders)/mss;
|
|
ULONG last = (packetSize - allHeaders)%mss;
|
|
ul = nFragments * (mss + allHeaders) + last + (last ? allHeaders : 0);
|
|
}
|
|
DPrintf(1, ("[%s]%s %d/%d, headers %d)",
|
|
__FUNCTION__, !ul ? "ERROR:" : "", ul, mss, allHeaders));
|
|
return ul;
|
|
}
|
|
|
|
/**********************************************************
|
|
Maps the HW buffers of the packet into entries of VirtIO queue
|
|
Parameters:
|
|
miniport context
|
|
PNDIS_PACKET Packet packet to copy data from
|
|
PVOID ReferenceValue - tSendEntry * of the packet
|
|
VirtIOBufferDescriptor buffers = array of buffers to map packet buffers
|
|
(it contains number of SG entries >= number of hw elements in the packet)
|
|
pIONetDescriptor pDesc - holder of VirtIO header and reserved data buffer
|
|
for possible replacement of one or more HW buffers
|
|
|
|
Returns @pMapperResult: (zeroed before call)
|
|
.usBuffersMapped - number of buffers mapped (one of them may be our own)
|
|
.ulDataSize - number of bytes to report as transmitted (802.1P tag is not counted)
|
|
.usBufferSpaceUsed - number of bytes used in data space of pIONetDescriptor pDesc
|
|
***********************************************************/
|
|
VOID ParaNdis_PacketMapper(
|
|
PARANDIS_ADAPTER *pContext,
|
|
PNDIS_PACKET packet,
|
|
PVOID ReferenceValue,
|
|
struct VirtIOBufferDescriptor *buffers,
|
|
pIONetDescriptor pDesc,
|
|
tMapperResult *pMapperResult)
|
|
{
|
|
tSendEntry *pSendEntry = (tSendEntry *)ReferenceValue;
|
|
ULONG PriorityDataLong = pSendEntry->PriorityDataLong;
|
|
PSCATTER_GATHER_LIST pSGList = NDIS_PER_PACKET_INFO_FROM_PACKET(packet, ScatterGatherListPacketInfo);
|
|
SCATTER_GATHER_ELEMENT *pSGElements = pSGList->Elements;
|
|
|
|
|
|
if (pSGList && pSGList->NumberOfElements)
|
|
{
|
|
UINT i, lengthGet = 0, lengthPut = 0, nCompleteBuffersToSkip = 0, nBytesSkipInFirstBuffer = 0;
|
|
if (pSendEntry->flags & (SEND_ENTRY_TSO_USED | SEND_ENTRY_TCP_CS | SEND_ENTRY_UDP_CS | SEND_ENTRY_IP_CS))
|
|
lengthGet = pContext->Offload.ipHeaderOffset + MAX_IPV4_HEADER_SIZE + sizeof(TCPHeader);
|
|
if (PriorityDataLong && !lengthGet)
|
|
lengthGet = ETH_HEADER_SIZE;
|
|
if (lengthGet)
|
|
{
|
|
ULONG len = 0;
|
|
for (i = 0; i < pSGList->NumberOfElements; ++i)
|
|
{
|
|
len += pSGElements[i].Length;
|
|
if (len > lengthGet)
|
|
{
|
|
nBytesSkipInFirstBuffer = pSGList->Elements[i].Length - (len - lengthGet);
|
|
break;
|
|
}
|
|
DPrintf(2, ("[%s] skipping buffer %d of %d", __FUNCTION__, nCompleteBuffersToSkip, pSGElements[i].Length));
|
|
nCompleteBuffersToSkip++;
|
|
}
|
|
// just for case of UDP packet shorter than TCP header
|
|
if (lengthGet > len) lengthGet = len;
|
|
lengthPut = lengthGet + (PriorityDataLong ? ETH_PRIORITY_HEADER_SIZE : 0);
|
|
}
|
|
|
|
if (lengthPut > pDesc->DataInfo.size)
|
|
{
|
|
DPrintf(0, ("[%s] ERROR: can not substitute %d bytes, sending as is", __FUNCTION__, lengthPut));
|
|
nCompleteBuffersToSkip = 0;
|
|
nBytesSkipInFirstBuffer = 0;
|
|
lengthGet = lengthPut = 0;
|
|
}
|
|
|
|
if (lengthPut)
|
|
{
|
|
// we replace 1 or more HW buffers with one buffer preallocated for data
|
|
buffers->physAddr = pDesc->DataInfo.Physical;
|
|
buffers->length = lengthPut;
|
|
pMapperResult->usBufferSpaceUsed = (USHORT)lengthPut;
|
|
pMapperResult->ulDataSize += lengthGet;
|
|
pMapperResult->usBuffersMapped = (USHORT)(pSGList->NumberOfElements - nCompleteBuffersToSkip + 1);
|
|
pSGElements += nCompleteBuffersToSkip;
|
|
buffers++;
|
|
DPrintf(1, ("[%s](%d bufs) skip %d buffers + %d bytes",
|
|
__FUNCTION__, pSGList->NumberOfElements, nCompleteBuffersToSkip, nBytesSkipInFirstBuffer));
|
|
}
|
|
else
|
|
{
|
|
pMapperResult->usBuffersMapped = (USHORT)pSGList->NumberOfElements;
|
|
}
|
|
|
|
for (i = nCompleteBuffersToSkip; i < pSGList->NumberOfElements; ++i)
|
|
{
|
|
if (nBytesSkipInFirstBuffer)
|
|
{
|
|
buffers->physAddr.QuadPart = pSGElements->Address.QuadPart + nBytesSkipInFirstBuffer;
|
|
buffers->length = pSGElements->Length - nBytesSkipInFirstBuffer;
|
|
DPrintf(2, ("[%s] using HW buffer %d of %d-%d", __FUNCTION__, i, pSGElements->Length, nBytesSkipInFirstBuffer));
|
|
nBytesSkipInFirstBuffer = 0;
|
|
}
|
|
else
|
|
{
|
|
buffers->physAddr = pSGElements->Address;
|
|
buffers->length = pSGElements->Length;
|
|
}
|
|
pMapperResult->ulDataSize += buffers->length;
|
|
pSGElements++;
|
|
buffers++;
|
|
}
|
|
|
|
if (lengthPut)
|
|
{
|
|
PVOID pBuffer = pDesc->DataInfo.Virtual;
|
|
PVOID pIpHeader = RtlOffsetToPointer(pBuffer, pContext->Offload.ipHeaderOffset);
|
|
ParaNdis_PacketCopier(packet, pBuffer, lengthGet, ReferenceValue, TRUE);
|
|
|
|
if (pSendEntry->flags & SEND_ENTRY_TSO_USED)
|
|
{
|
|
tTcpIpPacketParsingResult packetReview;
|
|
ULONG dummyTransferSize = 0;
|
|
USHORT saveBuffers = pMapperResult->usBuffersMapped;
|
|
ULONG flags = pcrIpChecksum | pcrTcpChecksum | pcrFixIPChecksum | pcrFixPHChecksum;
|
|
pMapperResult->usBuffersMapped = 0;
|
|
packetReview = ParaNdis_CheckSumVerify(
|
|
pIpHeader,
|
|
lengthGet - pContext->Offload.ipHeaderOffset,
|
|
flags,
|
|
__FUNCTION__);
|
|
/* uncomment to verify */
|
|
/*
|
|
packetReview = ParaNdis_CheckSumVerify(
|
|
pIpHeader,
|
|
lengthGet - pContext->Offload.ipHeaderOffset,
|
|
pcrIpChecksum | pcrTcpChecksum,
|
|
__FUNCTION__);
|
|
*/
|
|
if (packetReview.ipCheckSum == ppresCSOK || packetReview.fixedIpCS)
|
|
{
|
|
dummyTransferSize = CalculateTotalOffloadSize(
|
|
pMapperResult->ulDataSize,
|
|
pSendEntry->ipTransferUnit,
|
|
pContext->Offload.ipHeaderOffset,
|
|
pContext->MaxPacketSize.nMaxFullSizeOS,
|
|
packetReview);
|
|
}
|
|
else
|
|
{
|
|
DPrintf(0, ("[%s] ERROR locating IP header in %d bytes(IP header of %d)", __FUNCTION__,
|
|
lengthGet, packetReview.ipHeaderSize));
|
|
}
|
|
NDIS_PER_PACKET_INFO_FROM_PACKET(packet, TcpLargeSendPacketInfo) = (PVOID)(ULONG_PTR)dummyTransferSize;
|
|
if (dummyTransferSize)
|
|
{
|
|
virtio_net_hdr_basic *pheader = pDesc->HeaderInfo.Virtual;
|
|
unsigned short addPriorityLen = PriorityDataLong ? ETH_PRIORITY_HEADER_SIZE : 0;
|
|
pheader->flags = VIRTIO_NET_HDR_F_NEEDS_CSUM;
|
|
pheader->gso_type = VIRTIO_NET_HDR_GSO_TCPV4;
|
|
pheader->hdr_len = (USHORT)(packetReview.XxpIpHeaderSize + pContext->Offload.ipHeaderOffset) + addPriorityLen;
|
|
pheader->gso_size = (USHORT)pSendEntry->ipTransferUnit;
|
|
pheader->csum_start = (USHORT)pContext->Offload.ipHeaderOffset + (USHORT)packetReview.ipHeaderSize + addPriorityLen;
|
|
pheader->csum_offset = TCP_CHECKSUM_OFFSET;
|
|
pMapperResult->usBuffersMapped = saveBuffers;
|
|
}
|
|
}
|
|
else if (pSendEntry->flags & SEND_ENTRY_IP_CS)
|
|
{
|
|
ParaNdis_CheckSumVerify(
|
|
pIpHeader,
|
|
lengthGet - pContext->Offload.ipHeaderOffset,
|
|
pcrIpChecksum | pcrFixIPChecksum,
|
|
__FUNCTION__);
|
|
}
|
|
|
|
if (PriorityDataLong && pMapperResult->usBuffersMapped)
|
|
{
|
|
RtlMoveMemory(
|
|
RtlOffsetToPointer(pBuffer, ETH_PRIORITY_HEADER_OFFSET + ETH_PRIORITY_HEADER_SIZE),
|
|
RtlOffsetToPointer(pBuffer, ETH_PRIORITY_HEADER_OFFSET),
|
|
lengthGet - ETH_PRIORITY_HEADER_OFFSET
|
|
);
|
|
NdisMoveMemory(
|
|
RtlOffsetToPointer(pBuffer, ETH_PRIORITY_HEADER_OFFSET),
|
|
&PriorityDataLong,
|
|
sizeof(ETH_PRIORITY_HEADER_SIZE));
|
|
DPrintf(1, ("[%s] Populated priority value %lX", __FUNCTION__, PriorityDataLong));
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
static void InitializeTransferParameters(tTxOperationParameters *pParams, tSendEntry *pEntry)
|
|
{
|
|
ULONG flags = (pEntry->flags & SEND_ENTRY_TSO_USED) ? pcrLSO : 0;
|
|
if (pEntry->flags & SEND_ENTRY_NO_INDIRECT) flags |= pcrNoIndirect;
|
|
NdisQueryPacket(pEntry->packet, &pParams->nofSGFragments, NULL, NULL, (PUINT)&pParams->ulDataSize);
|
|
pParams->ReferenceValue = pEntry;
|
|
pParams->packet = pEntry->packet;
|
|
pParams->offloadMss = (pEntry->flags & SEND_ENTRY_TSO_USED) ? pEntry->ipTransferUnit : 0;
|
|
// on NDIS5 it is unknown
|
|
pParams->tcpHeaderOffset = 0;
|
|
// fills only if SGList present in the packet
|
|
GET_NUMBER_OF_SG_ELEMENTS(pEntry->packet, &pParams->nofSGFragments);
|
|
if (NDIS_GET_PACKET_PROTOCOL_TYPE(pEntry->packet) == NDIS_PROTOCOL_ID_TCP_IP)
|
|
{
|
|
flags |= pcrIsIP;
|
|
if (pEntry->flags & SEND_ENTRY_TCP_CS)
|
|
{
|
|
flags |= pcrTcpChecksum;
|
|
}
|
|
if (pEntry->flags & SEND_ENTRY_UDP_CS)
|
|
{
|
|
flags |= pcrUdpChecksum;
|
|
}
|
|
if (pEntry->flags & SEND_ENTRY_IP_CS)
|
|
{
|
|
flags |= pcrIpChecksum;
|
|
}
|
|
}
|
|
if (pEntry->PriorityDataLong) flags |= pcrPriorityTag;
|
|
pParams->flags = flags;
|
|
}
|
|
|
|
BOOLEAN ParaNdis_ProcessTx(
|
|
PARANDIS_ADAPTER *pContext,
|
|
BOOLEAN IsDpc,
|
|
BOOLEAN IsInterrupt)
|
|
{
|
|
LIST_ENTRY DoneList;
|
|
BOOLEAN bDoKick = FALSE;
|
|
UINT nBuffersSent = 0, nBytesSent = 0;
|
|
BOOLEAN bDataAvailable = FALSE;
|
|
tSendEntry *pEntry;
|
|
ONPAUSECOMPLETEPROC CallbackToCall = NULL;
|
|
InitializeListHead(&DoneList);
|
|
UNREFERENCED_PARAMETER(IsDpc);
|
|
NdisAcquireSpinLock(&pContext->SendLock);
|
|
|
|
ParaNdis_DebugHistory(pContext, hopTxProcess, NULL, 1, pContext->nofFreeHardwareBuffers, pContext->nofFreeTxDescriptors);
|
|
do
|
|
{
|
|
if(IsTimeToReleaseTx(pContext))
|
|
{
|
|
// release some buffers
|
|
ParaNdis_VirtIONetReleaseTransmitBuffers(pContext);
|
|
}
|
|
pEntry = NULL;
|
|
if (!IsListEmpty(&pContext->SendQueue))
|
|
{
|
|
tCopyPacketResult result;
|
|
tTxOperationParameters Params;
|
|
pEntry = (tSendEntry *)RemoveHeadList(&pContext->SendQueue);
|
|
InitializeTransferParameters(&Params, pEntry);
|
|
bDataAvailable = TRUE;
|
|
result = ParaNdis_DoSubmitPacket(pContext, &Params);
|
|
if (result.error == cpeNoBuffer)
|
|
{
|
|
// can not send now, try next time
|
|
InsertHeadList(&pContext->SendQueue, &pEntry->list);
|
|
pEntry = NULL;
|
|
}
|
|
else if (result.error == cpeNoIndirect)
|
|
{
|
|
InsertHeadList(&pContext->SendQueue, &pEntry->list);
|
|
pEntry->flags |= SEND_ENTRY_NO_INDIRECT;
|
|
}
|
|
else
|
|
{
|
|
InsertTailList(&pContext->TxWaitingList, &pEntry->list);
|
|
ParaNdis_DebugHistory(pContext, hopSubmittedPacket, pEntry->packet, 0, result.error, Params.flags);
|
|
if (!result.size)
|
|
{
|
|
NDIS_STATUS status = NDIS_STATUS_FAILURE;
|
|
DPrintf(0, ("[%s] ERROR %d copying packet!", __FUNCTION__, result.error));
|
|
if (result.error == cpeTooLarge)
|
|
{
|
|
status = NDIS_STATUS_BUFFER_OVERFLOW;
|
|
pContext->Statistics.ifOutErrors++;
|
|
}
|
|
NDIS_SET_PACKET_STATUS(pEntry->packet, status);
|
|
pEntry->flags |= SEND_ENTRY_FLAG_READY;
|
|
// do not worry, go to the next one
|
|
|
|
}
|
|
else
|
|
{
|
|
nBuffersSent++;
|
|
nBytesSent += result.size;
|
|
DPrintf(2, ("[%s] Scheduled packet %p, entry %p(%d bytes)!", __FUNCTION__,
|
|
pEntry->packet, pEntry, result.size));
|
|
}
|
|
}
|
|
}
|
|
} while (pEntry);
|
|
|
|
if (nBuffersSent)
|
|
{
|
|
if(IsInterrupt)
|
|
{
|
|
bDoKick = TRUE;
|
|
}
|
|
else
|
|
{
|
|
#ifdef PARANDIS_TEST_TX_KICK_ALWAYS
|
|
virtqueue_kick_always(pContext->NetSendQueue);
|
|
#else
|
|
virtqueue_kick(pContext->NetSendQueue);
|
|
#endif
|
|
}
|
|
DPrintf(2, ("[%s] sent down %d p.(%d b.)", __FUNCTION__, nBuffersSent, nBytesSent));
|
|
}
|
|
else if (bDataAvailable)
|
|
{
|
|
DPrintf(2, ("[%s] nothing sent", __FUNCTION__));
|
|
}
|
|
|
|
/* now check the waiting list of packets */
|
|
while (!IsListEmpty(&pContext->TxWaitingList))
|
|
{
|
|
pEntry = (tSendEntry *)RemoveHeadList(&pContext->TxWaitingList);
|
|
if (pEntry->flags & SEND_ENTRY_FLAG_READY)
|
|
{
|
|
InsertTailList(&DoneList, &pEntry->list);
|
|
}
|
|
else
|
|
{
|
|
InsertHeadList(&pContext->TxWaitingList, &pEntry->list);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (IsListEmpty(&pContext->TxWaitingList) && pContext->SendState == srsPausing && pContext->SendPauseCompletionProc)
|
|
{
|
|
CallbackToCall = pContext->SendPauseCompletionProc;
|
|
pContext->SendPauseCompletionProc = NULL;
|
|
pContext->SendState = srsDisabled;
|
|
ParaNdis_DebugHistory(pContext, hopInternalSendPause, NULL, 0, 0, 0);
|
|
}
|
|
NdisReleaseSpinLock(&pContext->SendLock);
|
|
|
|
while (!IsListEmpty(&DoneList))
|
|
{
|
|
pEntry = (tSendEntry *)RemoveHeadList(&DoneList);
|
|
CompletePacket(pContext, pEntry->packet);
|
|
NdisFreeMemory(pEntry, 0, 0);
|
|
}
|
|
if (CallbackToCall) CallbackToCall(pContext);
|
|
|
|
return bDoKick;
|
|
}
|
|
|
|
/**********************************************************
|
|
NDIS releases packets previously indicated by miniport
|
|
Free the packet's buffer and the packet back to their pools
|
|
Returns VirtIO buffer back to queue of free blocks
|
|
Parameters:
|
|
context
|
|
IN PNDIS_PACKET Packet returned packet
|
|
***********************************************************/
|
|
VOID NTAPI ParaNdis5_ReturnPacket(IN NDIS_HANDLE MiniportAdapterContext,IN PNDIS_PACKET Packet)
|
|
{
|
|
PARANDIS_ADAPTER *pContext = (PARANDIS_ADAPTER *)MiniportAdapterContext;
|
|
pIONetDescriptor pBufferDescriptor;
|
|
pBufferDescriptor = (pIONetDescriptor) *REF_MINIPORT(Packet);
|
|
DPrintf(4, ("[%s] buffer %p", __FUNCTION__, pBufferDescriptor));
|
|
|
|
NdisAcquireSpinLock(&pContext->ReceiveLock);
|
|
pContext->ReuseBufferProc(pContext, pBufferDescriptor);
|
|
NdisReleaseSpinLock(&pContext->ReceiveLock);
|
|
}
|
|
|
|
static __inline tSendEntry * PrepareSendEntry(PARANDIS_ADAPTER *pContext, PNDIS_PACKET Packet, ULONG len)
|
|
{
|
|
ULONG mss = (ULONG)(ULONG_PTR)NDIS_PER_PACKET_INFO_FROM_PACKET(Packet, TcpLargeSendPacketInfo);
|
|
UINT protocol = NDIS_GET_PACKET_PROTOCOL_TYPE(Packet);
|
|
LPCSTR errorFmt = NULL;
|
|
LPCSTR offloadName = "NO offload";
|
|
tSendEntry *pse = (tSendEntry *)ParaNdis_AllocateMemory(pContext, sizeof(tSendEntry));
|
|
if (pse)
|
|
{
|
|
NDIS_PACKET_8021Q_INFO qInfo;
|
|
pse->packet = Packet;
|
|
pse->flags = 0;
|
|
pse->PriorityDataLong = 0;
|
|
pse->ipTransferUnit = len;
|
|
//pse->fullTCPCheckSum = 0;
|
|
qInfo.Value = pContext->ulPriorityVlanSetting ?
|
|
NDIS_PER_PACKET_INFO_FROM_PACKET(Packet, Ieee8021QInfo) : NULL;
|
|
if (!qInfo.TagHeader.VlanId) qInfo.TagHeader.VlanId = pContext->VlanId;
|
|
if (qInfo.TagHeader.CanonicalFormatId || !IsValidVlanId(pContext, qInfo.TagHeader.VlanId))
|
|
{
|
|
DPrintf(0, ("[%s] Discarding priority tag %p", __FUNCTION__, qInfo.Value));
|
|
errorFmt = "invalid priority tag";
|
|
}
|
|
else if (qInfo.Value)
|
|
{
|
|
// ignore priority, if configured
|
|
if (!IsPrioritySupported(pContext))
|
|
qInfo.TagHeader.UserPriority = 0;
|
|
// ignore VlanId, if specified
|
|
if (!IsVlanSupported(pContext))
|
|
qInfo.TagHeader.VlanId = 0;
|
|
SetPriorityData(pse->PriorityData, qInfo.TagHeader.UserPriority, qInfo.TagHeader.VlanId);
|
|
DPrintf(1, ("[%s] Populated priority tag %p", __FUNCTION__, qInfo.Value));
|
|
}
|
|
|
|
if (!errorFmt && !mss && len > pContext->MaxPacketSize.nMaxFullSizeOS)
|
|
{
|
|
DPrintf(0, ("[%s] Request for offload with NO MSS, lso %d, ipheader %d",
|
|
__FUNCTION__, pContext->Offload.flags.fTxLso, pContext->Offload.ipHeaderOffset));
|
|
if (pContext->Offload.flags.fTxLso && pContext->Offload.ipHeaderOffset)
|
|
{
|
|
mss = pContext->MaxPacketSize.nMaxFullSizeOS;
|
|
}
|
|
else
|
|
errorFmt = "illegal LSO request";
|
|
}
|
|
|
|
if (errorFmt)
|
|
{
|
|
// already failed
|
|
}
|
|
else if (mss > pContext->MaxPacketSize.nMaxFullSizeOS)
|
|
errorFmt = "mss is too big";
|
|
else if (len > 0xFFFF)
|
|
errorFmt = "packet is bigger than we able to send";
|
|
else if (mss && pContext->Offload.flags.fTxLso)
|
|
{
|
|
offloadName = "LSO";
|
|
pse->ipTransferUnit = mss;
|
|
pse->flags |= SEND_ENTRY_TSO_USED;
|
|
// todo: move to common space
|
|
// to transmit 'len' with 'mss' we usually need 2 additional buffers
|
|
if ((len / mss + 3) > pContext->maxFreeHardwareBuffers)
|
|
errorFmt = "packet too big to fragment";
|
|
else if (len < pContext->Offload.ipHeaderOffset)
|
|
errorFmt = "ip offset is bigger than packet";
|
|
else if (protocol != NDIS_PROTOCOL_ID_TCP_IP)
|
|
errorFmt = "attempt to offload non-IP packet";
|
|
else if (mss < pContext->Offload.ipHeaderOffset)
|
|
errorFmt = "mss is too small";
|
|
}
|
|
else
|
|
{
|
|
// unexpected CS requests we do not fail - WHQL expects us to send them as is
|
|
NDIS_TCP_IP_CHECKSUM_PACKET_INFO csInfo;
|
|
csInfo.Value = (ULONG)(ULONG_PTR)NDIS_PER_PACKET_INFO_FROM_PACKET(Packet, TcpIpChecksumPacketInfo);
|
|
if (csInfo.Transmit.NdisPacketChecksumV4)
|
|
{
|
|
if (csInfo.Transmit.NdisPacketTcpChecksum)
|
|
{
|
|
offloadName = "TCP CS";
|
|
if (pContext->Offload.flags.fTxTCPChecksum)
|
|
pse->flags |= SEND_ENTRY_TCP_CS;
|
|
else
|
|
errorFmt = "TCP CS requested but not enabled";
|
|
}
|
|
if (csInfo.Transmit.NdisPacketUdpChecksum)
|
|
{
|
|
offloadName = "UDP CS";
|
|
if (pContext->Offload.flags.fTxUDPChecksum)
|
|
pse->flags |= SEND_ENTRY_UDP_CS;
|
|
else
|
|
errorFmt = "UDP CS requested but not enabled";
|
|
}
|
|
if (csInfo.Transmit.NdisPacketIpChecksum)
|
|
{
|
|
if (pContext->Offload.flags.fTxIPChecksum)
|
|
pse->flags |= SEND_ENTRY_IP_CS;
|
|
else
|
|
errorFmt = "IP CS requested but not enabled";
|
|
}
|
|
if (errorFmt)
|
|
{
|
|
DPrintf(0, ("[%s] ERROR: %s (len %d)", __FUNCTION__, errorFmt, len));
|
|
errorFmt = NULL;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (errorFmt)
|
|
{
|
|
DPrintf(0, ("[%s] ERROR: %s (len %d, mss %d)", __FUNCTION__, errorFmt, len, mss));
|
|
if (pse) NdisFreeMemory(pse, 0, 0);
|
|
pse = NULL;
|
|
}
|
|
else
|
|
{
|
|
NDIS_PER_PACKET_INFO_FROM_PACKET(Packet, TcpLargeSendPacketInfo) = (PVOID)(ULONG_PTR)0;
|
|
DPrintf(1, ("[%s] Sending packet of %d with %s", __FUNCTION__, len, offloadName));
|
|
if (pContext->bDoIPCheckTx)
|
|
{
|
|
tTcpIpPacketParsingResult res;
|
|
VOID *pcopy = ParaNdis_AllocateMemory(pContext, len);
|
|
ParaNdis_PacketCopier(pse->packet, pcopy, len, pse, TRUE);
|
|
res = ParaNdis_CheckSumVerify(
|
|
RtlOffsetToPointer(pcopy, pContext->Offload.ipHeaderOffset),
|
|
len,
|
|
pcrAnyChecksum/* | pcrFixAnyChecksum*/,
|
|
__FUNCTION__);
|
|
/*
|
|
if (res.xxpStatus == ppresXxpKnown)
|
|
{
|
|
TCPHeader *ptcp = (TCPHeader *)
|
|
RtlOffsetToPointer(pcopy, pContext->Offload.ipHeaderOffset + res.ipHeaderSize);
|
|
pse->fullTCPCheckSum = ptcp->tcp_xsum;
|
|
}
|
|
*/
|
|
NdisFreeMemory(pcopy, 0, 0);
|
|
}
|
|
}
|
|
return pse;
|
|
}
|
|
|
|
/**********************************************************
|
|
NDIS sends us packets
|
|
Queues packets internally and calls the procedure to process the queue
|
|
|
|
Parameters:
|
|
context
|
|
IN PPNDIS_PACKET PacketArray Array of packets to send
|
|
IN UINT NumberOfPackets number of packets
|
|
|
|
***********************************************************/
|
|
VOID NTAPI ParaNdis5_SendPackets(IN NDIS_HANDLE MiniportAdapterContext,
|
|
IN PPNDIS_PACKET PacketArray,
|
|
IN UINT NumberOfPackets)
|
|
{
|
|
UINT i;
|
|
LIST_ENTRY FailedList, DoneList;
|
|
PARANDIS_ADAPTER *pContext = (PARANDIS_ADAPTER *)MiniportAdapterContext;
|
|
InitializeListHead(&FailedList);
|
|
InitializeListHead(&DoneList);
|
|
DPrintf(3, ("[%s] %d packets", __FUNCTION__, NumberOfPackets));
|
|
ParaNdis_DebugHistory(pContext, hopSend, NULL, 1, NumberOfPackets, 0);
|
|
|
|
NdisAcquireSpinLock(&pContext->SendLock);
|
|
|
|
for (i = 0; i < NumberOfPackets; ++i)
|
|
{
|
|
UINT uPacketLength = 0;
|
|
NdisQueryPacketLength(PacketArray[i], &uPacketLength);
|
|
NDIS_SET_PACKET_STATUS(PacketArray[i], NDIS_STATUS_SUCCESS);
|
|
NdisInterlockedIncrement(&pContext->NetTxPacketsToReturn);
|
|
if (!pContext->bSurprizeRemoved && pContext->bConnected && pContext->SendState == srsEnabled && uPacketLength)
|
|
{
|
|
tSendEntry *pse = PrepareSendEntry(pContext, PacketArray[i], uPacketLength);
|
|
if (!pse)
|
|
{
|
|
NDIS_SET_PACKET_STATUS(PacketArray[i], NDIS_STATUS_FAILURE);
|
|
CompletePacket(pContext, PacketArray[i]);
|
|
}
|
|
else
|
|
{
|
|
UINT nFragments = 0;
|
|
GET_NUMBER_OF_SG_ELEMENTS(PacketArray[i], &nFragments);
|
|
ParaNdis_DebugHistory(pContext, hopSendPacketMapped, PacketArray[i], 0, nFragments, 0);
|
|
InsertTailList(&pContext->SendQueue, &pse->list);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
NDIS_STATUS status = NDIS_STATUS_FAILURE;
|
|
if (pContext->bSurprizeRemoved) status = NDIS_STATUS_NOT_ACCEPTED;
|
|
NDIS_SET_PACKET_STATUS(PacketArray[i], status);
|
|
CompletePacket(pContext, PacketArray[i]);
|
|
DPrintf(1, ("[%s] packet of %d rejected", __FUNCTION__, uPacketLength));
|
|
}
|
|
}
|
|
|
|
NdisReleaseSpinLock(&pContext->SendLock);
|
|
|
|
ParaNdis_ProcessTx(pContext, FALSE, FALSE);
|
|
}
|
|
|
|
/**********************************************************
|
|
NDIS procedure, not easy to test
|
|
NDIS asks us to cancel packets with specified CancelID
|
|
|
|
Parameters:
|
|
context
|
|
PVOID CancelId ID to cancel
|
|
|
|
***********************************************************/
|
|
VOID NTAPI ParaNdis5_CancelSendPackets(IN NDIS_HANDLE MiniportAdapterContext,IN PVOID CancelId)
|
|
{
|
|
PARANDIS_ADAPTER *pContext = (PARANDIS_ADAPTER *)MiniportAdapterContext;
|
|
LIST_ENTRY DoneList, KeepList;
|
|
UINT n = 0;
|
|
tSendEntry *pEntry;
|
|
DEBUG_ENTRY(0);
|
|
InitializeListHead(&DoneList);
|
|
InitializeListHead(&KeepList);
|
|
NdisAcquireSpinLock(&pContext->SendLock);
|
|
while ( !IsListEmpty(&pContext->SendQueue))
|
|
{
|
|
PNDIS_PACKET Packet;
|
|
pEntry = (tSendEntry *)RemoveHeadList(&pContext->SendQueue);
|
|
Packet = pEntry->packet;
|
|
if (NDIS_GET_PACKET_CANCEL_ID(Packet) == CancelId)
|
|
{
|
|
InsertTailList(&DoneList, &pEntry->list);
|
|
++n;
|
|
}
|
|
else InsertTailList(&KeepList, &pEntry->list);
|
|
}
|
|
while ( !IsListEmpty(&KeepList))
|
|
{
|
|
pEntry = (tSendEntry *)RemoveHeadList(&KeepList);
|
|
InsertTailList(&pContext->SendQueue, &pEntry->list);
|
|
}
|
|
NdisReleaseSpinLock(&pContext->SendLock);
|
|
while (!IsListEmpty(&DoneList))
|
|
{
|
|
pEntry = (tSendEntry *)RemoveHeadList(&DoneList);
|
|
NDIS_SET_PACKET_STATUS(pEntry->packet, NDIS_STATUS_REQUEST_ABORTED);
|
|
CompletePacket(pContext, pEntry->packet);
|
|
NdisFreeMemory(pEntry, 0, 0);
|
|
}
|
|
DEBUG_EXIT_STATUS(0, n);
|
|
}
|
|
|
|
/**********************************************************
|
|
Request to pause or resume data transmit
|
|
if stopped, all the packets in internal queue are returned
|
|
Parameters:
|
|
context
|
|
BOOLEAN bStop 1/0 - top or resume
|
|
***********************************************************/
|
|
NDIS_STATUS ParaNdis5_StopSend(PARANDIS_ADAPTER *pContext, BOOLEAN bStop, ONPAUSECOMPLETEPROC Callback)
|
|
{
|
|
NDIS_STATUS status = NDIS_STATUS_SUCCESS;
|
|
if (bStop)
|
|
{
|
|
LIST_ENTRY DoneList;
|
|
tSendEntry *pEntry;
|
|
DEBUG_ENTRY(0);
|
|
ParaNdis_DebugHistory(pContext, hopInternalSendPause, NULL, 1, 0, 0);
|
|
InitializeListHead(&DoneList);
|
|
NdisAcquireSpinLock(&pContext->SendLock);
|
|
if (IsListEmpty(&pContext->TxWaitingList))
|
|
{
|
|
pContext->SendState = srsDisabled;
|
|
while (!IsListEmpty(&pContext->SendQueue))
|
|
{
|
|
pEntry = (tSendEntry *)RemoveHeadList(&pContext->SendQueue);
|
|
InsertTailList(&DoneList, &pEntry->list);
|
|
}
|
|
ParaNdis_DebugHistory(pContext, hopInternalSendPause, NULL, 0, 0, 0);
|
|
}
|
|
else
|
|
{
|
|
pContext->SendState = srsPausing;
|
|
pContext->SendPauseCompletionProc = Callback;
|
|
status = NDIS_STATUS_PENDING;
|
|
while (!IsListEmpty(&pContext->SendQueue))
|
|
{
|
|
pEntry = (tSendEntry *)RemoveHeadList(&pContext->SendQueue);
|
|
pEntry->flags |= SEND_ENTRY_FLAG_READY;
|
|
InsertTailList(&pContext->TxWaitingList, &pEntry->list);
|
|
}
|
|
}
|
|
|
|
NdisReleaseSpinLock(&pContext->SendLock);
|
|
while (!IsListEmpty(&DoneList))
|
|
{
|
|
pEntry = (tSendEntry *)RemoveHeadList(&DoneList);
|
|
NDIS_SET_PACKET_STATUS(pEntry->packet, NDIS_STATUS_REQUEST_ABORTED);
|
|
CompletePacket(pContext, pEntry->packet);
|
|
NdisFreeMemory(pEntry, 0, 0);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
pContext->SendState = srsEnabled;
|
|
ParaNdis_DebugHistory(pContext, hopInternalSendResume, NULL, 0, 0, 0);
|
|
}
|
|
return status;
|
|
}
|
|
|
|
/**********************************************************
|
|
Pause or resume receive operation:
|
|
Parameters:
|
|
context
|
|
BOOLEAN bStop 1/0 - pause or resume
|
|
ONPAUSECOMPLETEPROC Callback callback to call, if not completed immediately
|
|
|
|
Return value:
|
|
SUCCESS, if there is no RX packets under NDIS management
|
|
PENDING, if we need to wait until NDIS returns us packets
|
|
***********************************************************/
|
|
NDIS_STATUS ParaNdis5_StopReceive(
|
|
PARANDIS_ADAPTER *pContext,
|
|
BOOLEAN bStop,
|
|
ONPAUSECOMPLETEPROC Callback
|
|
)
|
|
{
|
|
NDIS_STATUS status = NDIS_STATUS_SUCCESS;
|
|
if (bStop)
|
|
{
|
|
ParaNdis_DebugHistory(pContext, hopInternalReceivePause, NULL, 1, 0, 0);
|
|
NdisAcquireSpinLock(&pContext->ReceiveLock);
|
|
if (IsListEmpty(&pContext->NetReceiveBuffersWaiting))
|
|
{
|
|
pContext->ReceiveState = srsDisabled;
|
|
ParaNdis_DebugHistory(pContext, hopInternalReceivePause, NULL, 0, 0, 0);
|
|
}
|
|
else
|
|
{
|
|
pContext->ReceiveState = srsPausing;
|
|
pContext->ReceivePauseCompletionProc = Callback;
|
|
status = NDIS_STATUS_PENDING;
|
|
}
|
|
NdisReleaseSpinLock(&pContext->ReceiveLock);
|
|
}
|
|
else
|
|
{
|
|
pContext->ReceiveState = srsEnabled;
|
|
ParaNdis_DebugHistory(pContext, hopInternalReceiveResume, NULL, 0, 0, 0);
|
|
}
|
|
return status;
|
|
}
|
|
|
|
/*************************************************************
|
|
Required NDIS procedure, spawns regular (Common) DPC processing
|
|
*************************************************************/
|
|
VOID NTAPI ParaNdis5_HandleDPC(IN NDIS_HANDLE MiniportAdapterContext)
|
|
{
|
|
PARANDIS_ADAPTER *pContext = (PARANDIS_ADAPTER *)MiniportAdapterContext;
|
|
ULONG requiresProcessing;
|
|
BOOLEAN unused;
|
|
DEBUG_ENTRY(7);
|
|
// we do not need the timer, as DPC will do all the job
|
|
// this is not a problem if the timer procedure is already running,
|
|
// we need to do our job anyway
|
|
NdisCancelTimer(&pContext->DPCPostProcessTimer, &unused);
|
|
requiresProcessing = ParaNdis_DPCWorkBody(pContext, PARANDIS_UNLIMITED_PACKETS_TO_INDICATE);
|
|
if (requiresProcessing)
|
|
{
|
|
// we need to request additional DPC
|
|
InterlockedOr(&pContext->InterruptStatus, requiresProcessing);
|
|
NdisSetTimer(&pContext->DPCPostProcessTimer, 10);
|
|
}
|
|
}
|
|
|
|
BOOLEAN ParaNdis_SynchronizeWithInterrupt(
|
|
PARANDIS_ADAPTER *pContext,
|
|
ULONG messageId,
|
|
tSynchronizedProcedure procedure,
|
|
PVOID parameter)
|
|
{
|
|
tSynchronizedContext SyncContext;
|
|
SyncContext.pContext = pContext;
|
|
SyncContext.Parameter = parameter;
|
|
return NdisMSynchronizeWithInterrupt(&pContext->Interrupt, procedure, &SyncContext);
|
|
}
|