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Diffstat (limited to 'src/mem/ruby/network/garnet2.0/NetworkInterface.hh')
-rw-r--r-- | src/mem/ruby/network/garnet2.0/NetworkInterface.hh | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/src/mem/ruby/network/garnet2.0/NetworkInterface.hh b/src/mem/ruby/network/garnet2.0/NetworkInterface.hh new file mode 100644 index 000000000..85e0145af --- /dev/null +++ b/src/mem/ruby/network/garnet2.0/NetworkInterface.hh @@ -0,0 +1,108 @@ +/* + * 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_GARNET_NETWORK_INTERFACE_HH__ +#define __MEM_RUBY_NETWORK_GARNET_NETWORK_INTERFACE_HH__ + +#include <iostream> +#include <vector> + +#include "mem/ruby/common/Consumer.hh" +#include "mem/ruby/network/garnet2.0/CommonTypes.hh" +#include "mem/ruby/network/garnet2.0/CreditLink.hh" +#include "mem/ruby/network/garnet2.0/GarnetNetwork.hh" +#include "mem/ruby/network/garnet2.0/NetworkLink.hh" +#include "mem/ruby/network/garnet2.0/OutVcState.hh" +#include "mem/ruby/slicc_interface/Message.hh" +#include "params/GarnetNetworkInterface.hh" + +class MessageBuffer; +class flitBuffer; + +class NetworkInterface : public ClockedObject, public Consumer +{ + public: + typedef GarnetNetworkInterfaceParams Params; + NetworkInterface(const Params *p); + ~NetworkInterface(); + + void init(); + + void addInPort(NetworkLink *in_link, CreditLink *credit_link); + void addOutPort(NetworkLink *out_link, CreditLink *credit_link, + SwitchID router_id); + + void wakeup(); + void addNode(std::vector<MessageBuffer *> &inNode, + std::vector<MessageBuffer *> &outNode); + + void print(std::ostream& out) const; + int get_vnet(int vc); + int get_router_id() { return m_router_id; } + void init_net_ptr(GarnetNetwork *net_ptr) { m_net_ptr = net_ptr; } + + uint32_t functionalWrite(Packet *); + + private: + GarnetNetwork *m_net_ptr; + const NodeID m_id; + const int m_virtual_networks, m_vc_per_vnet, m_num_vcs; + int m_router_id; // id of my router + std::vector<OutVcState *> m_out_vc_state; + std::vector<int> m_vc_allocator; + int m_vc_round_robin; // For round robin scheduling + flitBuffer *outFlitQueue; // For modeling link contention + flitBuffer *outCreditQueue; + + NetworkLink *inNetLink; + NetworkLink *outNetLink; + CreditLink *inCreditLink; + CreditLink *outCreditLink; + + // Input Flit Buffers + // The flit buffers which will serve the Consumer + std::vector<flitBuffer *> m_ni_out_vcs; + std::vector<Cycles> m_ni_out_vcs_enqueue_time; + + // The Message buffers that takes messages from the protocol + std::vector<MessageBuffer *> inNode_ptr; + // The Message buffers that provides messages to the protocol + std::vector<MessageBuffer *> outNode_ptr; + + bool flitisizeMessage(MsgPtr msg_ptr, int vnet); + int calculateVC(int vnet); + void scheduleOutputLink(); + void checkReschedule(); +}; + +#endif // __MEM_RUBY_NETWORK_GARNET_NETWORK_INTERFACE_HH__ |