ruby: garnet: convert network interfaces into clocked objects

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

View file

@ -132,28 +132,37 @@ 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)
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")
network.enable_fault_model = True

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")

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

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");

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")

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);
}

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 *);

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')

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);

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");

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")

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);
}

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;

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')