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/*
* Copyright (c) 2008 Princeton University
* Copyright (c) 2016 Georgia Institute of Technology
* 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
* Tushar Krishna
*/
#ifndef __MEM_RUBY_NETWORK_GARNET2_0_FLIT_HH__
#define __MEM_RUBY_NETWORK_GARNET2_0_FLIT_HH__
#include <cassert>
#include <iostream>
#include "base/types.hh"
#include "mem/ruby/network/garnet2.0/CommonTypes.hh"
#include "mem/ruby/slicc_interface/Message.hh"
class flit
{
public:
flit() {}
flit(int id, int vc, int vnet, RouteInfo route, int size,
MsgPtr msg_ptr, Cycles curTime);
int get_outport() {return m_outport; }
int get_size() { return m_size; }
Cycles get_enqueue_time() { return m_enqueue_time; }
Cycles get_dequeue_time() { return m_dequeue_time; }
int get_id() { return m_id; }
Cycles get_time() { return m_time; }
int get_vnet() { return m_vnet; }
int get_vc() { return m_vc; }
RouteInfo get_route() { return m_route; }
MsgPtr& get_msg_ptr() { return m_msg_ptr; }
flit_type get_type() { return m_type; }
std::pair<flit_stage, Cycles> get_stage() { return m_stage; }
Cycles get_src_delay() { return src_delay; }
void set_outport(int port) { m_outport = port; }
void set_time(Cycles time) { m_time = time; }
void set_vc(int vc) { m_vc = vc; }
void set_route(RouteInfo route) { m_route = route; }
void set_src_delay(Cycles delay) { src_delay = delay; }
void set_dequeue_time(Cycles time) { m_dequeue_time = time; }
void increment_hops() { m_route.hops_traversed++; }
void print(std::ostream& out) const;
bool
is_stage(flit_stage stage, Cycles time)
{
return (stage == m_stage.first &&
time >= m_stage.second);
}
void
advance_stage(flit_stage t_stage, Cycles newTime)
{
m_stage.first = t_stage;
m_stage.second = newTime;
}
static bool
greater(flit* n1, flit* n2)
{
if (n1->get_time() == n2->get_time()) {
//assert(n1->flit_id != n2->flit_id);
return (n1->get_id() > n2->get_id());
} else {
return (n1->get_time() > n2->get_time());
}
}
bool functionalWrite(Packet *pkt);
protected:
int m_id;
int m_vnet;
int m_vc;
RouteInfo m_route;
int m_size;
Cycles m_enqueue_time, m_dequeue_time, m_time;
flit_type m_type;
MsgPtr m_msg_ptr;
int m_outport;
Cycles src_delay;
std::pair<flit_stage, Cycles> m_stage;
};
inline std::ostream&
operator<<(std::ostream& out, const flit& obj)
{
obj.print(out);
out << std::flush;
return out;
}
#endif // __MEM_RUBY_NETWORK_GARNET2_0_FLIT_HH__
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