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.
//
// * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; version 2 of the License.
//
// 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.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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// choice is available it will apply instead, Sun elects to use only
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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 */