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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
116 lines
2.4 KiB
C
116 lines
2.4 KiB
C
/*
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* PROJECT: ReactOS DC21x4 Driver
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* LICENSE: GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
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* PURPOSE: Send and receive definitions
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* COPYRIGHT: Copyright 2023 Dmitry Borisov <di.sean@protonmail.com>
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*/
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#pragma once
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#define DC_LIST_ENTRY_FROM_PACKET(Packet) \
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((PLIST_ENTRY)(&(Packet)->MiniportReservedEx[0]))
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#define DC_PACKET_FROM_LIST_ENTRY(ListEntry) \
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(CONTAINING_RECORD(ListEntry, NDIS_PACKET, MiniportReservedEx))
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#define DC_RCB_FROM_PACKET(Packet) \
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((PDC_RCB*)&(Packet)->MiniportReservedEx[0])
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#define DC_RBD_FROM_PACKET(Packet) \
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((PDC_RBD*)&(Packet)->MiniportReservedEx[sizeof(PVOID)])
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typedef struct _DC_COALESCE_BUFFER
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{
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/* Must be the first entry */
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SINGLE_LIST_ENTRY ListEntry;
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PVOID VirtualAddress;
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ULONG PhysicalAddress;
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} DC_COALESCE_BUFFER, *PDC_COALESCE_BUFFER;
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typedef struct _DC_TCB
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{
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PDC_TBD Tbd;
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PNDIS_PACKET Packet;
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PDC_COALESCE_BUFFER Buffer;
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ULONG SlotsUsed;
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} DC_TCB, *PDC_TCB;
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typedef struct _DC_RCB
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{
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/* Must be the first entry */
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SINGLE_LIST_ENTRY ListEntry;
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ULONG PhysicalAddress;
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ULONG Flags;
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#define DC_RCB_FLAG_RECLAIM 0x80000000
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PNDIS_PACKET Packet;
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PNDIS_BUFFER NdisBuffer;
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PVOID VirtualAddress;
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PVOID VirtualAddressOriginal;
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NDIS_PHYSICAL_ADDRESS PhysicalAddressOriginal;
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SINGLE_LIST_ENTRY AllocListEntry;
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} DC_RCB, *PDC_RCB;
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FORCEINLINE
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VOID
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DC_RELEASE_TCB(
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_In_ PDC21X4_ADAPTER Adapter,
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_In_ PDC_TCB Tcb)
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{
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if (Tcb->Buffer)
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{
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PushEntryList(&Adapter->SendBufferList, &Tcb->Buffer->ListEntry);
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}
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++Adapter->TcbSlots;
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Adapter->TbdSlots += Tcb->SlotsUsed;
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}
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FORCEINLINE
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PDC_TCB
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DC_NEXT_TCB(
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_In_ PDC21X4_ADAPTER Adapter,
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_In_ PDC_TCB Tcb)
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{
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if (Tcb++ == Adapter->TailTcb)
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return Adapter->HeadTcb;
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else
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return Tcb;
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}
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FORCEINLINE
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PDC_TBD
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DC_NEXT_TBD(
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_In_ PDC21X4_ADAPTER Adapter,
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_In_ PDC_TBD Tbd)
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{
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if (Tbd++ == Adapter->TailTbd)
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return Adapter->HeadTbd;
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else
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return Tbd;
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}
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FORCEINLINE
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PDC_RBD
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DC_NEXT_RBD(
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_In_ PDC21X4_ADAPTER Adapter,
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_In_ PDC_RBD Rbd)
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{
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if (Rbd++ == Adapter->TailRbd)
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return Adapter->HeadRbd;
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else
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return Rbd;
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}
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FORCEINLINE
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PDC_RCB*
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DC_GET_RCB_SLOT(
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_In_ PDC21X4_ADAPTER Adapter,
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_In_ PDC_RBD Rbd)
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{
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return Adapter->RcbArray + (((ULONG_PTR)(Rbd - Adapter->HeadRbd)));
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}
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