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/*
* Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
* 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
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __MEM_RUBY_NETWORK_SIMPLE_SIMPLENETWORK_HH__
#define __MEM_RUBY_NETWORK_SIMPLE_SIMPLENETWORK_HH__
#include <iostream>
#include <vector>
#include "mem/ruby/common/Global.hh"
#include "mem/ruby/network/Network.hh"
#include "params/SimpleNetwork.hh"
#include "sim/sim_object.hh"
class NetDest;
class MessageBuffer;
class Throttle;
class Switch;
class Topology;
class SimpleNetwork : public Network
{
public:
typedef SimpleNetworkParams Params;
SimpleNetwork(const Params *p);
~SimpleNetwork();
void init();
int getBufferSize() { return m_buffer_size; }
int getEndpointBandwidth() { return m_endpoint_bandwidth; }
bool getAdaptiveRouting() {return m_adaptive_routing; }
void printStats(std::ostream& out) const;
void clearStats();
void reset();
// returns the queue requested for the given component
MessageBuffer* getToNetQueue(NodeID id, bool ordered, int network_num, std::string vnet_type);
MessageBuffer* getFromNetQueue(NodeID id, bool ordered, int network_num, std::string vnet_type);
virtual const std::vector<Throttle*>* getThrottles(NodeID id) const;
bool isVNetOrdered(int vnet) { return m_ordered[vnet]; }
bool validVirtualNetwork(int vnet) { return m_in_use[vnet]; }
int getNumNodes() {return m_nodes; }
// Methods used by Topology to setup the network
void makeOutLink(SwitchID src, NodeID dest, BasicLink* link,
LinkDirection direction,
const NetDest& routing_table_entry,
bool isReconfiguration);
void makeInLink(NodeID src, SwitchID dest, BasicLink* link,
LinkDirection direction,
const NetDest& routing_table_entry,
bool isReconfiguration);
void makeInternalLink(SwitchID src, SwitchID dest, BasicLink* link,
LinkDirection direction,
const NetDest& routing_table_entry,
bool isReconfiguration);
void print(std::ostream& out) const;
bool functionalRead(Packet *pkt);
uint32_t functionalWrite(Packet *pkt);
private:
void checkNetworkAllocation(NodeID id, bool ordered, int network_num);
void addLink(SwitchID src, SwitchID dest, int link_latency);
void makeLink(SwitchID src, SwitchID dest,
const NetDest& routing_table_entry, int link_latency);
SwitchID createSwitch();
void makeTopology();
void linkTopology();
// Private copy constructor and assignment operator
SimpleNetwork(const SimpleNetwork& obj);
SimpleNetwork& operator=(const SimpleNetwork& obj);
// vector of queues from the components
std::vector<std::vector<MessageBuffer*> > m_toNetQueues;
std::vector<std::vector<MessageBuffer*> > m_fromNetQueues;
std::vector<bool> m_in_use;
std::vector<bool> m_ordered;
std::vector<Switch*> m_switch_ptr_vector;
std::vector<MessageBuffer*> m_buffers_to_free;
std::vector<Switch*> m_endpoint_switches;
int m_buffer_size;
int m_endpoint_bandwidth;
bool m_adaptive_routing;
};
inline std::ostream&
operator<<(std::ostream& out, const SimpleNetwork& obj)
{
obj.print(out);
out << std::flush;
return out;
}
#endif // __MEM_RUBY_NETWORK_SIMPLE_SIMPLENETWORK_HH__
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