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30 * Device module for modelling a fixed bandwidth full duplex ethernet link
33 #ifndef __DEV_ETHERLINK_HH__
34 #define __DEV_ETHERLINK_HH__
36 #include "dev/etherint.hh"
37 #include "dev/etherpkt.hh"
38 #include "sim/eventq.hh"
39 #include "sim/host.hh"
40 #include "sim/sim_object.hh"
45 * Model for a fixed bandwidth full duplex ethernet link
47 class EtherLink : public SimObject
52 friend class LinkDelayEvent;
54 * Model for a single uni-directional link
56 class Link : public Serializable {
69 * Transfer is complete
73 typedef EventWrapper<Link, &Link::txDone> DoneEvent;
74 friend void DoneEvent::process();
77 friend class LinkDelayEvent;
78 void txComplete(PacketPtr packet);
81 Link(const std::string &name, double rate, Tick delay,
85 virtual const std::string name() const { return objName; }
87 bool busy() const { return (bool)packet; }
88 bool transmit(PacketPtr packet);
90 void setTxInt(Interface *i) { assert(!txint); txint = i; }
91 void setRxInt(Interface *i) { assert(!rxint); rxint = i; }
93 virtual void serialize(std::ostream &os);
94 virtual void unserialize(Checkpoint *cp, const std::string §ion);
98 * Interface at each end of the link
100 class Interface : public EtherInt
106 Interface(const std::string &name, Link *txlink, Link *rxlink);
107 bool recvPacket(PacketPtr packet) { return txlink->transmit(packet); }
108 void sendDone() { peer->sendDone(); }
118 EtherLink(const std::string &name, EtherInt *i1, EtherInt *i2,
119 Tick speed, Tick delay, EtherDump *dump);
120 virtual ~EtherLink();
122 virtual void serialize(std::ostream &os);
123 virtual void unserialize(Checkpoint *cp, const std::string §ion);
127 #endif // __ETHERLINK_HH__