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Diffstat (limited to 'src/mem/ruby/network/simple/PerfectSwitch.hh')
-rw-r--r-- | src/mem/ruby/network/simple/PerfectSwitch.hh | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/src/mem/ruby/network/simple/PerfectSwitch.hh b/src/mem/ruby/network/simple/PerfectSwitch.hh new file mode 100644 index 000000000..4d381ccc9 --- /dev/null +++ b/src/mem/ruby/network/simple/PerfectSwitch.hh @@ -0,0 +1,118 @@ + +/* + * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood + * 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. + */ + +/* + * $Id$ + * + * Description: Perfect switch, of course it is perfect and no latency or what + * so ever. Every cycle it is woke up and perform all the + * necessary routings that must be done. Note, this switch also + * has number of input ports/output ports and has a routing table + * as well. + * + */ + +#ifndef PerfectSwitch_H +#define PerfectSwitch_H + +#include "Global.hh" +#include "Vector.hh" +#include "Consumer.hh" +#include "NodeID.hh" + +class MessageBuffer; +class NetDest; +class SimpleNetwork; + +class LinkOrder { +public: + int m_link; + int m_value; +}; + +class PerfectSwitch : public Consumer { +public: + // Constructors + + // constructor specifying the number of ports + PerfectSwitch(SwitchID sid, SimpleNetwork* network_ptr); + void addInPort(const Vector<MessageBuffer*>& in); + void addOutPort(const Vector<MessageBuffer*>& out, const NetDest& routing_table_entry); + void clearRoutingTables(); + void clearBuffers(); + void reconfigureOutPort(const NetDest& routing_table_entry); + int getInLinks() const { return m_in.size(); } + int getOutLinks() const { return m_out.size(); } + + // Destructor + ~PerfectSwitch(); + + // Public Methods + void wakeup(); + + void printStats(ostream& out) const; + void clearStats(); + void printConfig(ostream& out) const; + + void print(ostream& out) const; +private: + + // Private copy constructor and assignment operator + PerfectSwitch(const PerfectSwitch& obj); + PerfectSwitch& operator=(const PerfectSwitch& obj); + + // Data Members (m_ prefix) + SwitchID m_switch_id; + + // vector of queues from the components + Vector<Vector<MessageBuffer*> > m_in; + Vector<Vector<MessageBuffer*> > m_out; + Vector<NetDest> m_routing_table; + Vector<LinkOrder> m_link_order; + int m_virtual_networks; + int m_round_robin_start; + int m_wakeups_wo_switch; + SimpleNetwork* m_network_ptr; +}; + +// Output operator declaration +ostream& operator<<(ostream& out, const PerfectSwitch& obj); + +// ******************* Definitions ******************* + +// Output operator definition +extern inline +ostream& operator<<(ostream& out, const PerfectSwitch& obj) +{ + obj.print(out); + out << flush; + return out; +} + +#endif //PerfectSwitch_H |