etherbus.hh

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/*
 * Copyright (c) 2002-2005 The Regents of The University of Michigan
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met: redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer;
 * redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution;
 * neither the name of the copyright holders nor the names of its
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 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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/* @file
 * Device module for modelling an ethernet hub
 */
 
#ifndef __DEV_NET_ETHERBUS_HH__
#define __DEV_NET_ETHERBUS_HH__
 
#include "dev/net/etherpkt.hh"
#include "params/EtherBus.hh"
#include "sim/eventq.hh"
#include "sim/sim_object.hh"
 
namespace gem5
{
 
class EtherDump;
class EtherInt;
class EtherBus : public SimObject
{
  protected:
    typedef std::list<EtherInt *> devlist_t;
    devlist_t devlist;
    double ticksPerByte;
    bool loopback;
 
  protected:
    EventFunctionWrapper event;
    EthPacketPtr packet;
    EtherInt *sender;
    EtherDump *dump;
 
  public:
    using Params = EtherBusParams;
    EtherBus(const Params &p);
    virtual ~EtherBus() {}
 
    void txDone();
    void reg(EtherInt *dev);
    bool busy() const { return (bool)packet; }
    bool send(EtherInt *sender, EthPacketPtr &packet);
    Port &getPort(const std::string &if_name,
                  PortID idx=InvalidPortID) override;
};
 
} // namespace gem5
 
#endif // __DEV_NET_ETHERBUS_HH__