Initial commit of OpenSPARC T2 design and verification files.

[OpenSPARC-T2-DV] / verif / env / ilu_peu / vera / N2str / ilupeuIngressMsgStr.vr

// ========== Copyright Header Begin ==========================================
// 
// OpenSPARC T2 Processor File: ilupeuIngressMsgStr.vr
// Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved
// 4150 Network Circle, Santa Clara, California 95054, U.S.A.
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// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; version 2 of the License.
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// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
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// along with this program; if not, write to the Free Software
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// ========== Copyright Header End ============================================
class DmaMsgPEUStr extends PEUStrBase 
  {
  bit [7:0] f_msg;				// The requested message code
  bit [2:0] f_rc;				// The requested routing code
  bit f_msgSpecified;				// Was a message specified?
  bit f_rcSpecified;				// Was a routing code specified?
  integer f_len;				// Payload length (or zero)

  task new( PEUTestEnv a_env )
    {
    super.new( a_env );
    f_msgSpecified = 0;
    f_rcSpecified = 0;
    f_len = 0;
    }
  task SetMsgCode( bit [7:0] a_msg )
    {
    f_msg = a_msg;
    f_msgSpecified = 1;
    }
  task SetRoutingCode( bit [2:0] a_rc )
    {
    f_rc = a_rc;
    f_rcSpecified = 1;
    }
  task SetLen( integer a_len )
    {
    f_len = a_len;
    }
  task Execute()
    {
    bit[PEC_PCI__HDR] ingressHdr;		// The ingress TLP's header
    integer ingressData;			// A payload descriptor
    bit[7:0] ingressTag;			// The tag for the TLP

					// First, get in line for a DMA tag...
    f_env.allocDmaTag( ingressTag );

					// Then build a TLP
    f_env.genIngressMsg( ingressTag, ingressHdr, ingressData );

					// ...and set fields as requested
                                        // by the caller.
    if ( f_msgSpecified )
      ingressHdr[PEC_PCI__MSG_CODE] = f_msg;
    if ( f_rcSpecified )
      ingressHdr[PEC_PCI__TYPE] = 
                ( ingressHdr[PEC_PCI__TYPE] & ~PEC_PCI__TYPE_MSG_RC_MASK )
              | ( f_rc & PEC_PCI__TYPE_MSG_RC_MASK );
    if ( f_len )
      {
      ingressHdr[PEC_PCI__FMT_DATA] = 1;
      ingressHdr[PEC_PCI__LEN] = f_len;
      }

    f_env.reserveIngressCredits( ingressHdr );
    f_env.drivePCIE( ingressHdr, ingressData );
    f_env.consumeIngressCredits( ingressHdr );
    f_env.expectILU( ingressHdr, ingressData );
    f_env.freeDmaTag( ingressTag );
    } /* end Execute */
  } /* end DmaMsgPECStr */