Switch.hh revision 6154:6bb54dcb940e
1 2/* 3 * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are 8 * met: redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer; 10 * redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution; 13 * neither the name of the copyright holders nor the names of its 14 * contributors may be used to endorse or promote products derived from 15 * this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30/* 31 * $Id$ 32 * 33 * Description: The actual modelled switch. It use the perfect switch and a 34 * Throttle object to control and bandwidth and timing *only for 35 * the output port*. So here we have un-realistic modelling, 36 * since the order of PerfectSwitch and Throttle objects get 37 * woke up affect the message timing. A more accurate model would 38 * be having two set of system states, one for this cycle, one for 39 * next cycle. And on the cycle boundary swap the two set of 40 * states. 41 * 42 */ 43 44#ifndef Switch_H 45#define Switch_H 46 47#include "mem/ruby/common/Global.hh" 48#include "mem/gems_common/Vector.hh" 49 50class MessageBuffer; 51class PerfectSwitch; 52class NetDest; 53class SimpleNetwork; 54class Throttle; 55 56class Switch { 57public: 58 // Constructors 59 60 // constructor specifying the number of ports 61 Switch(SwitchID sid, SimpleNetwork* network_ptr); 62 void addInPort(const Vector<MessageBuffer*>& in); 63 void addOutPort(const Vector<MessageBuffer*>& out, const NetDest& routing_table_entry, int link_latency, int bw_multiplier); 64 const Throttle* getThrottle(LinkID link_number) const; 65 const Vector<Throttle*>* getThrottles() const; 66 void clearRoutingTables(); 67 void clearBuffers(); 68 void reconfigureOutPort(const NetDest& routing_table_entry); 69 70 void printStats(ostream& out) const; 71 void clearStats(); 72 void printConfig(ostream& out) const; 73 74 // Destructor 75 ~Switch(); 76 77 void print(ostream& out) const; 78private: 79 80 // Private copy constructor and assignment operator 81 Switch(const Switch& obj); 82 Switch& operator=(const Switch& obj); 83 84 // Data Members (m_ prefix) 85 PerfectSwitch* m_perfect_switch_ptr; 86 Vector<Throttle*> m_throttles; 87 Vector<MessageBuffer*> m_buffers_to_free; 88 SwitchID m_switch_id; 89}; 90 91// Output operator declaration 92ostream& operator<<(ostream& out, const Switch& obj); 93 94// ******************* Definitions ******************* 95 96// Output operator definition 97extern inline 98ostream& operator<<(ostream& out, const Switch& obj) 99{ 100 obj.print(out); 101 out << flush; 102 return out; 103} 104 105#endif //Switch_H 106