75 lines
3.4 KiB
Text
75 lines
3.4 KiB
Text
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/*
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* Copyright (c) 1999-2005 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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/*
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* $Id: MOSI_directory-msg.sm 1.9 04/08/09 16:11:38-05:00 mikem@maya.cs.wisc.edu $
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*
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*/
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// CoherenceRequestType
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enumeration(CoherenceRequestType, desc="...") {
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GETX, desc="Get eXclusive";
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GETS, desc="Get Shared";
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GET_INSTR, desc="Get Instruction";
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PUTX, desc="Put eXclusive";
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INV, desc="INValidate";
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WB_ACK, desc="Write Back ACKnowledgment";
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}
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// CoherenceResponseType
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enumeration(CoherenceResponseType, desc="...") {
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ACK, desc="ACKnowledgment";
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NACK, desc="Negative ACKnowledgment";
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DATA, desc="Data";
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}
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// RequestMsg
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structure(RequestMsg, desc="...", interface="NetworkMessage") {
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Address Address, desc="Physical address for this request";
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CoherenceRequestType Type, desc="Type of request (GetS, GetX, PutX, etc)";
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MachineID Requestor, desc="Node who initiated the request";
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NetDest Destination, desc="Multicast destination mask";
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DataBlock DataBlk, desc="Data for the cache line (if PUTX)";
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int NumPendingAcks, desc="Number of acks to wait for"; // Needed for forwarded responses only
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MessageSizeType MessageSize, desc="size category of the message";
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}
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// ResponseMsg
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structure(ResponseMsg, desc="...", interface="NetworkMessage") {
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Address Address, desc="Physical address for this request";
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CoherenceResponseType Type, desc="Type of response (Ack, Data, etc)";
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MachineID Sender, desc="Node who sent the data";
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MachineType SenderMachine, desc="What component sent the data";
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NetDest Destination, desc="Node to whom the data is sent";
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MachineType DestMachine, desc="What component receives the data";
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DataBlock DataBlk, desc="data for the cache line";
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int NumPendingAcks, desc="Number of acks to wait for";
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MessageSizeType MessageSize, desc="size category of the message";
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}
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