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ruby: garnet: convert network interfaces into clocked objects

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This helps in configuring the network interfaces from the python script and
these objects no longer rely on the network object for the timing information.
This commit is contained in:
Nilay Vaish 2014-03-20 09:14:14 -05:00
parent 4f7ef51efb
commit 4b67ada89e
14 changed files with 173 additions and 196 deletions
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37
configs/ruby/Ruby.py
View file

@ -132,27 +132,36 @@ def create_system(options, system, piobus = None, dma_ports = []):
# Set the network classes based on the command line options
#
if options.garnet_network == "fixed":
class NetworkClass(GarnetNetwork_d): pass
class IntLinkClass(GarnetIntLink_d): pass
class ExtLinkClass(GarnetExtLink_d): pass
class RouterClass(GarnetRouter_d): pass
NetworkClass = GarnetNetwork_d
IntLinkClass = GarnetIntLink_d
ExtLinkClass = GarnetExtLink_d
RouterClass = GarnetRouter_d
InterfaceClass = GarnetNetworkInterface_d
elif options.garnet_network == "flexible":
class NetworkClass(GarnetNetwork): pass
class IntLinkClass(GarnetIntLink): pass
class ExtLinkClass(GarnetExtLink): pass
class RouterClass(GarnetRouter): pass
NetworkClass = GarnetNetwork
IntLinkClass = GarnetIntLink
ExtLinkClass = GarnetExtLink
RouterClass = GarnetRouter
InterfaceClass = GarnetNetworkInterface
else:
class NetworkClass(SimpleNetwork): pass
class IntLinkClass(SimpleIntLink): pass
class ExtLinkClass(SimpleExtLink): pass
class RouterClass(Switch): pass
NetworkClass = SimpleNetwork
IntLinkClass = SimpleIntLink
ExtLinkClass = SimpleExtLink
RouterClass = Switch
InterfaceClass = None
# Create the network topology
network = NetworkClass(ruby_system = ruby, topology = topology.description,
routers = [], ext_links = [], int_links = [])
routers = [], ext_links = [], int_links = [], netifs = [])
topology.makeTopology(options, network, IntLinkClass, ExtLinkClass,
RouterClass)
RouterClass)
if InterfaceClass != None:
netifs = [InterfaceClass(id=i) for (i,n) in enumerate(network.ext_links)]
network.netifs = netifs
if options.network_fault_model:
assert(options.garnet_network == "fixed")

1
src/mem/ruby/network/Network.py
View file

@ -45,5 +45,6 @@ class RubyNetwork(ClockedObject):
ruby_system = Param.RubySystem("")
routers = VectorParam.BasicRouter("Network routers")
netifs = VectorParam.ClockedObject("Network Interfaces")
ext_links = VectorParam.BasicExtLink("Links to external nodes")
int_links = VectorParam.BasicIntLink("Links between internal nodes")

25
src/mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.cc
View file

@ -60,6 +60,17 @@ GarnetNetwork_d::GarnetNetwork_d(const Params *p)
i != p->routers.end(); ++i) {
Router_d* router = safe_cast<Router_d*>(*i);
m_routers.push_back(router);
// initialize the router's network pointers
router->init_net_ptr(this);
}
// record the network interfaces
for (vector<ClockedObject*>::const_iterator i = p->netifs.begin();
i != p->netifs.end(); ++i) {
NetworkInterface_d *ni = safe_cast<NetworkInterface_d *>(*i);
m_nis.push_back(ni);
ni->init_net_ptr(this);
}
}
@ -68,23 +79,13 @@ GarnetNetwork_d::init()
{
BaseGarnetNetwork::init();
// initialize the router's network pointers
for (vector<Router_d*>::const_iterator i = m_routers.begin();
i != m_routers.end(); ++i) {
Router_d* router = safe_cast<Router_d*>(*i);
router->init_net_ptr(this);
for (int i=0; i < m_nodes; i++) {
m_nis[i]->addNode(m_toNetQueues[i], m_fromNetQueues[i]);
}
// The topology pointer should have already been initialized in the
// parent network constructor
assert(m_topology_ptr != NULL);
for (int i=0; i < m_nodes; i++) {
NetworkInterface_d *ni = new NetworkInterface_d(i, m_virtual_networks,
this);
ni->addNode(m_toNetQueues[i], m_fromNetQueues[i]);
m_nis.push_back(ni);
}
m_topology_ptr->createLinks(this);
// FaultModel: declare each router to the fault model

27
src/mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.py
View file

@ -29,10 +29,33 @@
# Brad Beckmann
from m5.params import *
from m5.proxy import *
from BaseGarnetNetwork import BaseGarnetNetwork
from BasicRouter import BasicRouter
from ClockedObject import ClockedObject
class GarnetRouter_d(BasicRouter):
type = 'GarnetRouter_d'
cxx_class = 'Router_d'
cxx_header = "mem/ruby/network/garnet/fixed-pipeline/Router_d.hh"
vcs_per_vnet = Param.UInt32(Parent.vcs_per_vnet,
"virtual channels per virtual network")
virt_nets = Param.UInt32(Parent.number_of_virtual_networks,
"number of virtual networks")
class GarnetNetworkInterface_d(ClockedObject):
type = 'GarnetNetworkInterface_d'
cxx_class = 'NetworkInterface_d'
cxx_header = "mem/ruby/network/garnet/fixed-pipeline/NetworkInterface_d.hh"
id = Param.UInt32("ID in relation to other network interfaces")
vcs_per_vnet = Param.UInt32(Parent.vcs_per_vnet,
"virtual channels per virtual network")
virt_nets = Param.UInt32(Parent.number_of_virtual_networks,
"number of virtual networks")
class GarnetNetwork_d(BaseGarnetNetwork):
type = 'GarnetNetwork_d'
cxx_header = "mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.hh"
buffers_per_data_vc = Param.Int(4, "buffers per data virtual channel");
buffers_per_ctrl_vc = Param.Int(1, "buffers per ctrl virtual channel");
buffers_per_data_vc = Param.UInt32(4, "buffers per data virtual channel");
buffers_per_ctrl_vc = Param.UInt32(1, "buffers per ctrl virtual channel");

44
src/mem/ruby/network/garnet/fixed-pipeline/GarnetRouter_d.py
View file

@ -1,44 +0,0 @@
# Copyright (c) 2008 Princeton University
# Copyright (c) 2009 Advanced Micro Devices, Inc.
# 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: Steve Reinhardt
# Brad Beckmann
from m5.params import *
from m5.proxy import *
from BasicRouter import BasicRouter
class GarnetRouter_d(BasicRouter):
type = 'GarnetRouter_d'
cxx_class = 'Router_d'
cxx_header = "mem/ruby/network/garnet/fixed-pipeline/Router_d.hh"
vcs_per_vnet = Param.Int(Parent.vcs_per_vnet,
"virtual channels per virtual network")
virt_nets = Param.Int(Parent.number_of_virtual_networks,
"number of virtual networks")

68
src/mem/ruby/network/garnet/fixed-pipeline/NetworkInterface_d.cc
View file

@ -42,14 +42,12 @@
using namespace std;
using m5::stl_helpers::deletePointers;
NetworkInterface_d::NetworkInterface_d(int id, int virtual_networks,
GarnetNetwork_d *network_ptr)
: Consumer(network_ptr)
NetworkInterface_d::NetworkInterface_d(const Params *p)
: ClockedObject(p), Consumer(this)
{
m_id = id;
m_net_ptr = network_ptr;
m_virtual_networks = virtual_networks;
m_vc_per_vnet = m_net_ptr->getVCsPerVnet();
m_id = p->id;
m_virtual_networks = p->virt_nets;
m_vc_per_vnet = p->vcs_per_vnet;
m_num_vcs = m_vc_per_vnet*m_virtual_networks;
m_vc_round_robin = 0;
@ -64,11 +62,16 @@ NetworkInterface_d::NetworkInterface_d(int id, int virtual_networks,
m_ni_buffers[i] = new flitBuffer_d();
m_ni_enqueue_time[i] = INFINITE_;
}
m_vc_allocator.resize(m_virtual_networks); // 1 allocator per vnet
for (int i = 0; i < m_virtual_networks; i++) {
m_vc_allocator[i] = 0;
}
}
void
NetworkInterface_d::init()
{
for (int i = 0; i < m_num_vcs; i++) {
m_out_vc_state.push_back(new OutVcState_d(i, m_net_ptr));
}
@ -115,9 +118,8 @@ NetworkInterface_d::addNode(vector<MessageBuffer *>& in,
// the protocol injects messages into the NI
inNode_ptr[j]->setConsumer(this);
inNode_ptr[j]->setReceiver(m_net_ptr);
outNode_ptr[j]->setSender(m_net_ptr);
inNode_ptr[j]->setReceiver(this);
outNode_ptr[j]->setSender(this);
}
}
@ -172,15 +174,14 @@ NetworkInterface_d::flitisizeMessage(MsgPtr msg_ptr, int vnet)
for (int i = 0; i < num_flits; i++) {
m_net_ptr->increment_injected_flits(vnet);
flit_d *fl = new flit_d(i, vc, vnet, num_flits, new_msg_ptr,
m_net_ptr->curCycle());
curCycle());
fl->set_delay(m_net_ptr->curCycle() -
m_net_ptr->ticksToCycles(msg_ptr->getTime()));
fl->set_delay(curCycle() - ticksToCycles(msg_ptr->getTime()));
m_ni_buffers[vc]->insert(fl);
}
m_ni_enqueue_time[vc] = m_net_ptr->curCycle();
m_out_vc_state[vc]->setState(ACTIVE_, m_net_ptr->curCycle());
m_ni_enqueue_time[vc] = curCycle();
m_out_vc_state[vc]->setState(ACTIVE_, curCycle());
}
return true ;
}
@ -196,7 +197,7 @@ NetworkInterface_d::calculateVC(int vnet)
m_vc_allocator[vnet] = 0;
if (m_out_vc_state[(vnet*m_vc_per_vnet) + delta]->isInState(
IDLE_, m_net_ptr->curCycle())) {
IDLE_, curCycle())) {
return ((vnet*m_vc_per_vnet) + delta);
}
}
@ -216,8 +217,7 @@ NetworkInterface_d::calculateVC(int vnet)
void
NetworkInterface_d::wakeup()
{
DPRINTF(RubyNetwork, "m_id: %d woke up at time: %lld",
m_id, m_net_ptr->curCycle());
DPRINTF(RubyNetwork, "m_id: %d woke up at time: %lld", m_id, curCycle());
MsgPtr msg_ptr;
@ -239,7 +239,7 @@ NetworkInterface_d::wakeup()
/*********** Picking messages destined for this NI **********/
if (inNetLink->isReady(m_net_ptr->curCycle())) {
if (inNetLink->isReady(curCycle())) {
flit_d *t_flit = inNetLink->consumeLink();
bool free_signal = false;
if (t_flit->get_type() == TAIL_ || t_flit->get_type() == HEAD_TAIL_) {
@ -251,15 +251,14 @@ NetworkInterface_d::wakeup()
// Simply send a credit back since we are not buffering
// this flit in the NI
flit_d *credit_flit = new flit_d(t_flit->get_vc(), free_signal,
m_net_ptr->curCycle());
curCycle());
creditQueue->insert(credit_flit);
m_ni_credit_link->
scheduleEventAbsolute(m_net_ptr->clockEdge(Cycles(1)));
scheduleEventAbsolute(clockEdge(Cycles(1)));
int vnet = t_flit->get_vnet();
m_net_ptr->increment_received_flits(vnet);
Cycles network_delay = m_net_ptr->curCycle() -
t_flit->get_enqueue_time();
Cycles network_delay = curCycle() - t_flit->get_enqueue_time();
Cycles queueing_delay = t_flit->get_delay();
m_net_ptr->increment_network_latency(network_delay, vnet);
@ -269,12 +268,11 @@ NetworkInterface_d::wakeup()
/****************** Checking for credit link *******/
if (m_credit_link->isReady(m_net_ptr->curCycle())) {
if (m_credit_link->isReady(curCycle())) {
flit_d *t_flit = m_credit_link->consumeLink();
m_out_vc_state[t_flit->get_vc()]->increment_credit();
if (t_flit->is_free_signal()) {
m_out_vc_state[t_flit->get_vc()]->setState(IDLE_,
m_net_ptr->curCycle());
m_out_vc_state[t_flit->get_vc()]->setState(IDLE_, curCycle());
}
delete t_flit;
}
@ -300,7 +298,7 @@ NetworkInterface_d::scheduleOutputLink()
vc = 0;
// model buffer backpressure
if (m_ni_buffers[vc]->isReady(m_net_ptr->curCycle()) &&
if (m_ni_buffers[vc]->isReady(curCycle()) &&
m_out_vc_state[vc]->has_credits()) {
bool is_candidate_vc = true;
@ -311,7 +309,7 @@ NetworkInterface_d::scheduleOutputLink()
for (int vc_offset = 0; vc_offset < m_vc_per_vnet;
vc_offset++) {
int t_vc = vc_base + vc_offset;
if (m_ni_buffers[t_vc]->isReady(m_net_ptr->curCycle())) {
if (m_ni_buffers[t_vc]->isReady(curCycle())) {
if (m_ni_enqueue_time[t_vc] < m_ni_enqueue_time[vc]) {
is_candidate_vc = false;
break;
@ -325,11 +323,10 @@ NetworkInterface_d::scheduleOutputLink()
m_out_vc_state[vc]->decrement_credit();
// Just removing the flit
flit_d *t_flit = m_ni_buffers[vc]->getTopFlit();
t_flit->set_time(m_net_ptr->curCycle() + Cycles(1));
t_flit->set_time(curCycle() + Cycles(1));
outSrcQueue->insert(t_flit);
// schedule the out link
outNetLink->
scheduleEventAbsolute(m_net_ptr->clockEdge(Cycles(1)));
outNetLink->scheduleEventAbsolute(clockEdge(Cycles(1)));
if (t_flit->get_type() == TAIL_ ||
t_flit->get_type() == HEAD_TAIL_) {
@ -361,7 +358,7 @@ NetworkInterface_d::checkReschedule()
}
}
for (int vc = 0; vc < m_num_vcs; vc++) {
if (m_ni_buffers[vc]->isReady(m_net_ptr->curCycle() + Cycles(1))) {
if (m_ni_buffers[vc]->isReady(curCycle() + Cycles(1))) {
scheduleEvent(Cycles(1));
return;
}
@ -385,3 +382,10 @@ NetworkInterface_d::functionalWrite(Packet *pkt)
num_functional_writes += outSrcQueue->functionalWrite(pkt);
return num_functional_writes;
}
NetworkInterface_d *
GarnetNetworkInterface_dParams::create()
{
return new NetworkInterface_d(this);
}

11
src/mem/ruby/network/garnet/fixed-pipeline/NetworkInterface_d.hh
View file

@ -41,19 +41,21 @@
#include "mem/ruby/network/garnet/fixed-pipeline/OutVcState_d.hh"
#include "mem/ruby/network/garnet/NetworkHeader.hh"
#include "mem/ruby/slicc_interface/Message.hh"
#include "params/GarnetNetworkInterface_d.hh"
class NetworkMessage;
class MessageBuffer;
class flitBuffer_d;
class NetworkInterface_d : public Consumer
class NetworkInterface_d : public ClockedObject, public Consumer
{
public:
NetworkInterface_d(int id, int virtual_networks,
GarnetNetwork_d* network_ptr);
typedef GarnetNetworkInterface_dParams Params;
NetworkInterface_d(const Params *p);
~NetworkInterface_d();
void init();
void addInPort(NetworkLink_d *in_link, CreditLink_d *credit_link);
void addOutPort(NetworkLink_d *out_link, CreditLink_d *credit_link);
@ -62,6 +64,7 @@ class NetworkInterface_d : public Consumer
std::vector<MessageBuffer *> &outNode);
void print(std::ostream& out) const;
int get_vnet(int vc);
void init_net_ptr(GarnetNetwork_d *net_ptr) { m_net_ptr = net_ptr; }
uint32_t functionalWrite(Packet *);

1
src/mem/ruby/network/garnet/fixed-pipeline/SConscript
View file

@ -35,7 +35,6 @@ if env['PROTOCOL'] == 'None':
SimObject('GarnetLink_d.py')
SimObject('GarnetNetwork_d.py')
SimObject('GarnetRouter_d.py')
Source('GarnetLink_d.cc')
Source('GarnetNetwork_d.cc')

11
src/mem/ruby/network/garnet/flexible-pipeline/GarnetNetwork.cc
View file

@ -56,6 +56,11 @@ GarnetNetwork::GarnetNetwork(const Params *p)
Router* router = safe_cast<Router*>(*i);
m_routers.push_back(router);
}
for (int i=0; i < m_nodes; i++) {
NetworkInterface *ni = safe_cast<NetworkInterface *>(p->netifs[i]);
m_nis.push_back(ni);
}
}
void
@ -74,10 +79,8 @@ GarnetNetwork::init()
}
for (int i=0; i < m_nodes; i++) {
NetworkInterface *ni = new NetworkInterface(i, m_virtual_networks,
this);
ni->addNode(m_toNetQueues[i], m_fromNetQueues[i]);
m_nis.push_back(ni);
m_nis[i]->init_net_ptr(this);
m_nis[i]->addNode(m_toNetQueues[i], m_fromNetQueues[i]);
}
m_topology_ptr->createLinks(this);

27
src/mem/ruby/network/garnet/flexible-pipeline/GarnetNetwork.py
View file

@ -29,11 +29,34 @@
# Brad Beckmann
from m5.params import *
from m5.proxy import *
from BaseGarnetNetwork import BaseGarnetNetwork
from BasicRouter import BasicRouter
from ClockedObject import ClockedObject
class GarnetRouter(BasicRouter):
type = 'GarnetRouter'
cxx_class = 'Router'
cxx_header = "mem/ruby/network/garnet/flexible-pipeline/Router.hh"
vcs_per_vnet = Param.Int(Parent.vcs_per_vnet,
"virtual channels per virtual network")
virt_nets = Param.Int(Parent.number_of_virtual_networks,
"number of virtual networks")
class GarnetNetworkInterface(ClockedObject):
type = 'GarnetNetworkInterface'
cxx_class = 'NetworkInterface'
cxx_header = "mem/ruby/network/garnet/flexible-pipeline/NetworkInterface.hh"
id = Param.UInt32("ID in relation to other network interfaces")
vcs_per_vnet = Param.UInt32(Parent.vcs_per_vnet,
"virtual channels per virtual network")
virt_nets = Param.UInt32(Parent.number_of_virtual_networks,
"number of virtual networks")
class GarnetNetwork(BaseGarnetNetwork):
type = 'GarnetNetwork'
cxx_header = "mem/ruby/network/garnet/flexible-pipeline/GarnetNetwork.hh"
buffer_size = Param.Int(0,
buffer_size = Param.UInt32(0,
"default buffer size; 0 indicates infinite buffering");
number_of_pipe_stages = Param.Int(4, "router pipeline stages");
number_of_pipe_stages = Param.UInt32(4, "router pipeline stages");

42
src/mem/ruby/network/garnet/flexible-pipeline/GarnetRouter.py
View file

@ -1,42 +0,0 @@
# Copyright (c) 2008 Princeton University
# Copyright (c) 2009 Advanced Micro Devices, Inc.
# 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: Steve Reinhardt
# Brad Beckmann
from m5.params import *
from m5.proxy import *
from BasicRouter import BasicRouter
class GarnetRouter(BasicRouter):
type = 'GarnetRouter'
cxx_class = 'Router'
cxx_header = "mem/ruby/network/garnet/flexible-pipeline/Router.hh"
vcs_per_vnet = Param.Int(Parent.vcs_per_vnet,
"virtual channels per virtual network")
virt_nets = Param.Int(Parent.number_of_virtual_networks,
"number of virtual networks")

57
src/mem/ruby/network/garnet/flexible-pipeline/NetworkInterface.cc
View file

@ -42,14 +42,12 @@
using namespace std;
using m5::stl_helpers::deletePointers;
NetworkInterface::NetworkInterface(int id, int virtual_networks,
GarnetNetwork *network_ptr)
: FlexibleConsumer(network_ptr)
NetworkInterface::NetworkInterface(const Params *p)
: ClockedObject(p), FlexibleConsumer(this)
{
m_id = id;
m_net_ptr = network_ptr;
m_virtual_networks = virtual_networks;
m_vc_per_vnet = m_net_ptr->getVCsPerVnet();
m_id = p->id;
m_virtual_networks = p->virt_nets;
m_vc_per_vnet = p->vcs_per_vnet;
m_num_vcs = m_vc_per_vnet*m_virtual_networks;
m_vc_round_robin = 0;
@ -105,9 +103,8 @@ NetworkInterface::addNode(vector<MessageBuffer*>& in,
// protocol injects messages into the NI
for (int j = 0; j < m_virtual_networks; j++) {
inNode_ptr[j]->setConsumer(this);
inNode_ptr[j]->setReceiver(m_net_ptr);
outNode_ptr[j]->setSender(m_net_ptr);
inNode_ptr[j]->setReceiver(this);
outNode_ptr[j]->setSender(this);
}
}
@ -169,20 +166,18 @@ NetworkInterface::flitisizeMessage(MsgPtr msg_ptr, int vnet)
for (int i = 0; i < num_flits; i++) {
m_net_ptr->increment_injected_flits(vnet);
flit *fl = new flit(i, vc, vnet, num_flits, new_msg_ptr,
m_net_ptr->curCycle());
fl->set_delay(m_net_ptr->curCycle() -
m_net_ptr->ticksToCycles(msg_ptr->getTime()));
curCycle());
fl->set_delay(curCycle() - ticksToCycles(msg_ptr->getTime()));
m_ni_buffers[vc]->insert(fl);
}
m_out_vc_state[vc]->setState(VC_AB_, m_net_ptr->curCycle());
m_out_vc_state[vc]->setState(VC_AB_, curCycle());
// setting an output vc request for the next hop.
// This flit will be ready to traverse the link and into the next hop
// only when an output vc is acquired at the next hop
outNetLink->request_vc_link(vc,
new_net_msg_ptr->getInternalDestination(),
m_net_ptr->curCycle());
outNetLink->request_vc_link(
vc, new_net_msg_ptr->getInternalDestination(), curCycle());
}
return true ;
@ -224,8 +219,8 @@ NetworkInterface::calculateVC(int vnet)
if (m_vc_allocator[vnet] == vc_per_vnet)
m_vc_allocator[vnet] = 0;
if (m_out_vc_state[(vnet*m_vc_per_vnet) + delta]->isInState(IDLE_,
m_net_ptr->curCycle())) {
if (m_out_vc_state[(vnet*m_vc_per_vnet) + delta]->
isInState(IDLE_, curCycle())) {
return ((vnet*m_vc_per_vnet) + delta);
}
}
@ -269,20 +264,19 @@ NetworkInterface::wakeup()
flit *t_flit = inNetLink->consumeLink();
if (t_flit->get_type() == TAIL_ || t_flit->get_type() == HEAD_TAIL_) {
DPRINTF(RubyNetwork, "m_id: %d, Message delivered at time: %lld\n",
m_id, m_net_ptr->curCycle());
m_id, curCycle());
outNode_ptr[t_flit->get_vnet()]->enqueue(
t_flit->get_msg_ptr(), Cycles(1));
// signal the upstream router that this vc can be freed now
inNetLink->release_vc_link(t_flit->get_vc(),
m_net_ptr->curCycle() + Cycles(1));
curCycle() + Cycles(1));
}
int vnet = t_flit->get_vnet();
m_net_ptr->increment_received_flits(vnet);
Cycles network_delay = m_net_ptr->curCycle() -
t_flit->get_enqueue_time();
Cycles network_delay = curCycle() - t_flit->get_enqueue_time();
Cycles queueing_delay = t_flit->get_delay();
m_net_ptr->increment_network_latency(network_delay, vnet);
@ -309,19 +303,18 @@ NetworkInterface::scheduleOutputLink()
vc++;
if (vc == m_num_vcs)
vc = 0;
if (m_ni_buffers[vc]->isReady(m_net_ptr->curCycle())) {
if (m_out_vc_state[vc]->isInState(ACTIVE_,
m_net_ptr->curCycle()) &&
if (m_ni_buffers[vc]->isReady(curCycle())) {
if (m_out_vc_state[vc]->isInState(ACTIVE_, curCycle()) &&
outNetLink->isBufferNotFull_link(vc)) { // buffer backpressure
// Just removing the flit
flit *t_flit = m_ni_buffers[vc]->getTopFlit();
t_flit->set_time(m_net_ptr->curCycle() + Cycles(1));
t_flit->set_time(curCycle() + Cycles(1));
outSrcQueue->insert(t_flit);
// schedule the out link
outNetLink->
scheduleEventAbsolute(m_net_ptr->clockEdge(Cycles(1)));
scheduleEventAbsolute(clockEdge(Cycles(1)));
return;
}
}
@ -338,7 +331,7 @@ NetworkInterface::checkReschedule()
}
}
for (int vc = 0; vc < m_num_vcs; vc++) {
if (m_ni_buffers[vc]->isReadyForNext(m_net_ptr->curCycle())) {
if (m_ni_buffers[vc]->isReadyForNext(curCycle())) {
scheduleEvent(Cycles(1));
return;
}
@ -380,3 +373,9 @@ NetworkInterface::print(std::ostream& out) const
{
out << "[Network Interface]";
}
NetworkInterface *
GarnetNetworkInterfaceParams::create()
{
return new NetworkInterface(this);
}

17
src/mem/ruby/network/garnet/flexible-pipeline/NetworkInterface.hh
View file

@ -40,16 +40,17 @@
#include "mem/ruby/network/garnet/flexible-pipeline/OutVcState.hh"
#include "mem/ruby/network/garnet/NetworkHeader.hh"
#include "mem/ruby/slicc_interface/Message.hh"
#include "params/GarnetNetworkInterface.hh"
class NetworkMessage;
class MessageBuffer;
class flitBuffer;
class NetworkInterface : public FlexibleConsumer
class NetworkInterface : public ClockedObject, public FlexibleConsumer
{
public:
NetworkInterface(int id, int virtual_networks,
GarnetNetwork* network_ptr);
typedef GarnetNetworkInterfaceParams Params;
NetworkInterface(const Params *p);
~NetworkInterface();
@ -62,11 +63,7 @@ class NetworkInterface : public FlexibleConsumer
void grant_vc(int out_port, int vc, Cycles grant_time);
void release_vc(int out_port, int vc, Cycles release_time);
bool
isBufferNotFull(int vc, int inport)
{
return true;
}
bool isBufferNotFull(int vc, int inport) { return true; }
void request_vc(int in_vc, int in_port, NetDest destination,
Cycles request_time);
@ -75,9 +72,11 @@ class NetworkInterface : public FlexibleConsumer
bool functionalRead(Packet *);
uint32_t functionalWrite(Packet *);
void init_net_ptr(GarnetNetwork* net_ptr) { m_net_ptr = net_ptr; }
private:
GarnetNetwork *m_net_ptr;
int m_virtual_networks, m_num_vcs, m_vc_per_vnet;
uint32_t m_virtual_networks, m_num_vcs, m_vc_per_vnet;
NodeID m_id;
std::vector<OutVcState *> m_out_vc_state;

1
src/mem/ruby/network/garnet/flexible-pipeline/SConscript
View file

@ -35,7 +35,6 @@ if env['PROTOCOL'] == 'None':
SimObject('GarnetLink.py')
SimObject('GarnetNetwork.py')
SimObject('GarnetRouter.py')
Source('GarnetLink.cc')
Source('GarnetNetwork.cc')