bf8ae288fa
This member indicates whether or not a particular virtual network is in use. Instead of having a default big value for the number of virtual networks and then checking whether a virtual network is in use, the next patch removes the default value and the protocol configuration file would now specify the number of virtual networks it requires. Additionally, the patch also refactors some of the code used for computing the virtual channel next in the round robin order.
131 lines
4.5 KiB
C++
131 lines
4.5 KiB
C++
/*
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* Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "base/misc.hh"
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#include "mem/ruby/network/BasicLink.hh"
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#include "mem/ruby/network/Network.hh"
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#include "mem/ruby/system/System.hh"
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uint32_t Network::m_virtual_networks;
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uint32_t Network::m_control_msg_size;
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uint32_t Network::m_data_msg_size;
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Network::Network(const Params *p)
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: ClockedObject(p)
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{
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m_virtual_networks = p->number_of_virtual_networks;
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m_control_msg_size = p->control_msg_size;
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// Total nodes/controllers in network
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// Must make sure this is called after the State Machine constructors
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m_nodes = MachineType_base_number(MachineType_NUM);
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assert(m_nodes != 0);
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assert(m_virtual_networks != 0);
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m_topology_ptr = new Topology(p->routers.size(), p->ext_links,
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p->int_links);
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// Allocate to and from queues
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// Queues that are getting messages from protocol
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m_toNetQueues.resize(m_nodes);
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// Queues that are feeding the protocol
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m_fromNetQueues.resize(m_nodes);
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m_ordered.resize(m_virtual_networks);
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for (int i = 0; i < m_virtual_networks; i++) {
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m_ordered[i] = false;
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}
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params()->ruby_system->registerNetwork(this);
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// Initialize the controller's network pointers
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for (std::vector<BasicExtLink*>::const_iterator i = p->ext_links.begin();
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i != p->ext_links.end(); ++i) {
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BasicExtLink *ext_link = (*i);
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AbstractController *abs_cntrl = ext_link->params()->ext_node;
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abs_cntrl->initNetworkPtr(this);
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}
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// Register a callback function for combining the statistics
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Stats::registerDumpCallback(new StatsCallback(this));
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}
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Network::~Network()
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{
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for (int node = 0; node < m_nodes; node++) {
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// Delete the Message Buffers
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for (auto& it : m_toNetQueues[node]) {
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delete it;
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}
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for (auto& it : m_fromNetQueues[node]) {
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delete it;
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}
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}
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delete m_topology_ptr;
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}
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void
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Network::init()
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{
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m_data_msg_size = RubySystem::getBlockSizeBytes() + m_control_msg_size;
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}
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uint32_t
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Network::MessageSizeType_to_int(MessageSizeType size_type)
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{
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switch(size_type) {
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case MessageSizeType_Control:
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case MessageSizeType_Request_Control:
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case MessageSizeType_Reissue_Control:
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case MessageSizeType_Response_Control:
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case MessageSizeType_Writeback_Control:
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case MessageSizeType_Broadcast_Control:
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case MessageSizeType_Multicast_Control:
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case MessageSizeType_Forwarded_Control:
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case MessageSizeType_Invalidate_Control:
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case MessageSizeType_Unblock_Control:
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case MessageSizeType_Persistent_Control:
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case MessageSizeType_Completion_Control:
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return m_control_msg_size;
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case MessageSizeType_Data:
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case MessageSizeType_Response_Data:
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case MessageSizeType_ResponseLocal_Data:
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case MessageSizeType_ResponseL2hit_Data:
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case MessageSizeType_Writeback_Data:
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return m_data_msg_size;
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default:
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panic("Invalid range for type MessageSizeType");
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break;
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}
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}
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