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antanguay |
/**
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* Scoreboard / Checker for 10 GE MAC Core verification environment.
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* It takes packet data from driver as well as monitor class and comapre them for equality for error checking purpose
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* @file: scoreboard.sv
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* @author: Pratik Mahajan
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* @par Contact: pratik@e-pigeonpost.com
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* @par Company: UCSC 1896 course
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*
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* @version: $LastChangedRevision$
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* @par Last Changed Date
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* $LastChangedDate$
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* $par Last Changed By
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* $LastChangedBy$
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*/
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/**
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* Scoreboard class for error checking of 10GE MAC Core.
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* Collects packet data from driver and monitor in the form of mailboxes and then compare them for equality.
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* If they are equal then communication was successful
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* @class scoreboard
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* @par mailbox driver2Scoreboard collects transmitted packets from driver.
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* @par mailbox monitor2Scoreboard collects received packets through monitor.
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*/
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class scoreboard;
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mailbox driver2Scoreboard; ///< packet data passed down from driver as source or expected data
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mailbox monitor2Scoreboard; ///< packet data from monitor as source for actual data
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static bit error = 0; ///< Error flag to keep track of correctness of verification environment
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/**
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* Constructor for scoreboard class.
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* purpose is to create an object for scoreboard which will take mailboxes from respective classes
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* @param mailbox receivedFromDriver to hold mailbox received from Driver
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* @param mailbox receivedFromMonitor to hold mailbox received from Monitor
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* @return: NA (creates object of type scoreboard and returns handle)
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*/
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function new (input mailbox receivedFromDriver, input mailbox receivedFromMonitor);
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this.driver2Scoreboard = receivedFromDriver;
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this.monitor2Scoreboard = receivedFromMonitor;
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endfunction: new
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/**
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* Compare task for error checking.
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* This task compares actual and expected results for correctness of design.
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* @param mailbox driver2Scoreboard expected results to be validated
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* @param mailbox monitor2Scoreboard actual results to be compared
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*/
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task compare ( input mailbox driver2Scoreboard,
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input mailbox monitor2Scoreboard,
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int bytesInFrame);
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packet driverPacket;
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packet monitorPacket;
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driver2Scoreboard.get (driverPacket);
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monitor2Scoreboard.get (monitorPacket);
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`define driverData { driverPacket.packetData [7], driverPacket.packetData [6], driverPacket.packetData [5], driverPacket.packetData [4], driverPacket.packetData [3], driverPacket.packetData [2], driverPacket.packetData [1], driverPacket.packetData [0] }
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`define monitorData { monitorPacket.receivedData [7], monitorPacket.receivedData [6], monitorPacket.receivedData [5], monitorPacket.receivedData [4], monitorPacket.receivedData [3], monitorPacket.receivedData [2], monitorPacket.receivedData [1], monitorPacket.receivedData [0] }
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if (bytesInFrame != 0) begin
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for (int i = 0; i < bytesInFrame; i++) begin
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if (driverPacket.packetData [7-i] != monitorPacket.receivedData [7-i]) begin
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$display ("ERROR: Packet data [%0d] the data was %x and %x mismatched", i, driverPacket.packetData[7-i], monitorPacket.receivedData[7-i]);
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error = 1;
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end
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end
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end
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if (bytesInFrame == 0)
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if (`driverData != `monitorData) begin
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$display ("ERROR: Packet frame mismatched");
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error = 1;
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end
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if (driverPacket.startOfPacket != monitorPacket.startOfPacket || driverPacket.endOfPacket != monitorPacket.endOfPacket)
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begin
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error = 1;
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$display ("ERROR: Packet control mismatched ");
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end
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/* if (error == 0) begin
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$display ("PASS: Packet matched properly ");
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end
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*/
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endtask // compare
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endclass // scoreboard
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