/*
 * Copyright (c) 2008 Princeton University
 * 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.
 *
 * Authors: Niket Agarwal
 */

#ifndef __MEM_RUBY_NETWORK_GARNET_FIXED_PIPELINE_GARNETNETWORK_D_HH__
#define __MEM_RUBY_NETWORK_GARNET_FIXED_PIPELINE_GARNETNETWORK_D_HH__

#include <iostream>
#include <vector>

#include "mem/ruby/network/garnet/NetworkHeader.hh"
#include "mem/ruby/network/garnet/BaseGarnetNetwork.hh"
#include "mem/ruby/network/Network.hh"
#include "params/GarnetNetwork_d.hh"

class NetworkInterface_d;
class MessageBuffer;
class Router_d;
class Topology;
class NetDest;
class NetworkLink_d;
class CreditLink_d;

class GarnetNetwork_d : public BaseGarnetNetwork
{
  public:
    typedef GarnetNetwork_dParams Params;
    GarnetNetwork_d(const Params *p);

    ~GarnetNetwork_d();

    void init();

    int getNumNodes() { return m_nodes; }

    // returns the queue requested for the given component
    MessageBuffer* getToNetQueue(NodeID id, bool ordered, int network_num);
    MessageBuffer* getFromNetQueue(NodeID id, bool ordered, int network_num);

    void clearStats();
    void printStats(std::ostream& out) const;
    void printConfig(std::ostream& out) const;
    void print(std::ostream& out) const;

    void
    set_vnet_type(int vc, VNET_type vnet_type)
    {
        int vnet = vc/getVCsPerClass();
        m_vnet_type[vnet] = vnet_type;
    }

    VNET_type
    get_vnet_type(int vc)
    {
        int vnet = vc/getVCsPerClass();
        return m_vnet_type[vnet];
    }


    inline void increment_injected_flits() { m_flits_injected++; }
    inline void increment_received_flits() { m_flits_received++; }

    inline void
    increment_network_latency(Time latency)
    {
        m_network_latency += latency;
    }

    inline void
    increment_queueing_latency(Time latency)
    {
        m_queueing_latency += latency;
    }

    bool isVNetOrdered(int vnet) { return m_ordered[vnet]; }
    bool validVirtualNetwork(int vnet) { return m_in_use[vnet]; }
    Time getRubyStartTime();

    void reset();

    // Methods used by Topology to setup the network
    void makeOutLink(SwitchID src, NodeID dest,
        const NetDest& routing_table_entry, int link_latency, int link_weight,
        int bw_multiplier, bool isReconfiguration);
    void makeInLink(SwitchID src, NodeID dest,
        const NetDest& routing_table_entry, int link_latency,
        int bw_multiplier, bool isReconfiguration);
    void makeInternalLink(SwitchID src, NodeID dest,
        const NetDest& routing_table_entry, int link_latency, int link_weight,
        int bw_multiplier, bool isReconfiguration);

  private:
    void checkNetworkAllocation(NodeID id, bool ordered, int network_num);

    GarnetNetwork_d(const GarnetNetwork_d& obj);
    GarnetNetwork_d& operator=(const GarnetNetwork_d& obj);

    std::vector<VNET_type > m_vnet_type;
    // int m_virtual_networks;
    // int m_nodes;
    int m_flits_received, m_flits_injected;
    double m_network_latency, m_queueing_latency;

    std::vector<bool> m_in_use;
    std::vector<bool> m_ordered;

    std::vector<std::vector<MessageBuffer*> > m_toNetQueues;
    std::vector<std::vector<MessageBuffer*> > m_fromNetQueues;

    std::vector<Router_d *> m_router_ptr_vector;   // All Routers in Network
    std::vector<NetworkLink_d *> m_link_ptr_vector; // All links in the network
    std::vector<CreditLink_d *> m_creditlink_ptr_vector; // All links in net
    std::vector<NetworkInterface_d *> m_ni_ptr_vector;   // All NI's in Network

    //      Topology* m_topology_ptr;
    Time m_ruby_start;
};

inline std::ostream&
operator<<(std::ostream& out, const GarnetNetwork_d& obj)
{
    obj.print(out);
    out << std::flush;
    return out;
}

#endif // __MEM_RUBY_NETWORK_GARNET_FIXED_PIPELINE_GARNETNETWORK_D_HH__