2 * Copyright (c) 2003-2005 The Regents of The University of Michigan
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28 * Authors: Nathan Binkert
32 * Interface to connect a simulated ethernet device to the real world
35 #ifndef __ETHERTAP_HH__
36 #define __ETHERTAP_HH__
41 #include "base/pollevent.hh"
42 #include "dev/etherobject.hh"
43 #include "dev/etherint.hh"
44 #include "dev/etherpkt.hh"
45 #include "params/EtherTap.hh"
46 #include "sim/eventq.hh"
47 #include "sim/sim_object.hh"
54 * Interface to connect a simulated ethernet device to the real world
56 class EtherTap : public EtherObject
59 friend class TapEvent;
63 friend class TapListener;
64 TapListener *listener;
68 uint32_t buffer_offset;
78 std::queue<EthPacketPtr> packetBuffer;
79 EtherTapInt *interface;
81 void process(int revent);
82 void enqueue(EthPacketData *packet);
87 class TxEvent : public Event
93 TxEvent(EtherTap *_tap) : tap(_tap) {}
94 void process() { tap->retransmit(); }
95 virtual const char *description() const
96 { return "EtherTap retransmit"; }
103 typedef EtherTapParams Params;
104 EtherTap(const Params *p);
110 return dynamic_cast<const Params *>(_params);
113 virtual EtherInt *getEthPort(const std::string &if_name, int idx);
115 virtual bool recvPacket(EthPacketPtr packet);
116 virtual void sendDone();
118 virtual void serialize(std::ostream &os);
119 virtual void unserialize(Checkpoint *cp, const std::string §ion);
122 class EtherTapInt : public EtherInt
127 EtherTapInt(const std::string &name, EtherTap *t)
128 : EtherInt(name), tap(t)
131 virtual bool recvPacket(EthPacketPtr pkt) { return tap->recvPacket(pkt); }
132 virtual void sendDone() { tap->sendDone(); }
136 #endif // __ETHERTAP_HH__