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- Set the MAP_BASE_SW_SG flag for map registers in IoFreeMapRegisters.
- Fix address calculation in HalpCopyBufferMap. - Correctly set the map register counter in IoMapTransfer if dealing with MAP_BASE_SW_SG map registers. svn path=/trunk/; revision=17629
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@ -1402,6 +1402,13 @@ IoFreeMapRegisters(
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AdapterObject->MapRegisterBase =
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MasterAdapter->MapRegisterBase + Index;
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if (!AdapterObject->ScatterGather)
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{
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AdapterObject->MapRegisterBase =
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(PMAP_REGISTER_ENTRY)(
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(ULONG_PTR)AdapterObject->MapRegisterBase |
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MAP_BASE_SW_SG);
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}
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Result = ((PDRIVER_CONTROL)AdapterObject->CurrentWcb->DeviceRoutine)(
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AdapterObject->CurrentWcb->DeviceObject,
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@ -1471,7 +1478,8 @@ HalpCopyBufferMap(
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KEBUGCHECK(0);
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}
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CurrentAddress = (ULONG_PTR)CurrentVa -
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CurrentAddress = (ULONG_PTR)VirtualAddress +
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(ULONG_PTR)CurrentVa -
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(ULONG_PTR)MmGetMdlVirtualAddress(Mdl);
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while (Length > 0)
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@ -1583,7 +1591,7 @@ IoFlushAdapterBuffers(
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Length -= HalReadDmaCounter(AdapterObject);
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}
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HalpCopyBufferMap(Mdl, RealMapRegisterBase, CurrentVa, Length, 0);
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HalpCopyBufferMap(Mdl, RealMapRegisterBase, CurrentVa, Length, FALSE);
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}
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else
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{
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@ -1763,7 +1771,7 @@ IoMapTransfer(
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RealMapRegisterBase->Counter += BYTES_TO_PAGES(ByteOffset + TransferLength);
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/*
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* Check if the buffer doesn't exceed the highest phisical address
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* Check if the buffer doesn't exceed the highest physical address
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* limit of the device. In that case we must use the map registers to
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* store the data.
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*/
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@ -1775,6 +1783,10 @@ IoMapTransfer(
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UseMapRegisters = TRUE;
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PhysicalAddress = RealMapRegisterBase->PhysicalAddress;
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PhysicalAddress.QuadPart += ByteOffset;
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if ((ULONG_PTR)MapRegisterBase & MAP_BASE_SW_SG)
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{
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RealMapRegisterBase->Counter = ~0;
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}
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}
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}
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