verif/env/ilu_peu/vera/N2str/ilupeuDmaURMsgPEUStr.vr

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//
// OpenSPARC T2 Processor File: ilupeuDmaURMsgPEUStr.vr
// Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved
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// the Free Software Foundation; version 2 of the License.
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// 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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// choice is available it will apply instead, Sun elects to use only
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class DmaURMsgPEUStr extends DmaURBasePEUStr {


  // ******************************************************************
  // The Test Environment objects need to execute the strategy.
  // ******************************************************************
  local PEUTestEnv              _env;
  local integer                 _errQueue;

  // For coverage's sake...
  static integer                _ctr = 0;


  // ******************************************************************
  // TLP Fields - These fields will be randomized using the parameters
  // in the following section, and obeying the constraints defined
  // within this class.
  // ******************************************************************
  local         bit [1:0]       _format;
  local         bit [4:0]       _type;
  local         bit [2:0]       _tc;
  local         bit             _td;
  local         bit             _ep;
  local         bit [1:0]       _attr;
  local         bit [9:0]       _len;
  local         bit [15:0]      _req_id;
  local         bit [7:0]       _tag;
  local         bit [7:0]       _m_code;
  local         bit [63:0]      _addr;
  local         integer         _data;


  // ******************************************************************
  // Constructor
  // ******************************************************************
  public task new(PEUTestEnv a_env, (integer a_errQueue = 'bx));


  // ******************************************************************
  // Execute the strategy.
  // ******************************************************************
   public task Execute();
}


//-------------------------------------------------------------------
// Method Name:
// Description:
//-------------------------------------------------------------------
task DmaURMsgPEUStr::new(PEUTestEnv a_env, (integer a_errQueue = 'bx)) {


  super.new(a_env);
  this._env = a_env;
  this._errQueue = a_errQueue;
}


//-------------------------------------------------------------------
// Method Name:
// Description:
//-------------------------------------------------------------------
task DmaURMsgPEUStr::Execute() {


  bit [PEC_PCI__HDR]            reqHdr;


  this._format = PEC_PCI__FMT_NO_DATA_4DW;

  this._type [4:3] = 2'b_10;
  this._type [2:0] = urandom_range(3'b_111, 3'b_000);

  this._tc         = 3'b_000;
  this._td         = urandom_range(1'b_1, 1'b_0);

  randcase {
    this._ep_req_prob_false : this._ep = 1'b_0;
    this._ep_req_prob_true  : this._ep = 1'b_1;
  }

  this._attr       = 2'b_00;
  this._len        = 10'b_00_0000_0000;
  this._req_id     = urandom_range(16'h_FFFF, 16'h_0);
  this._tag        = urandom_range(8'h_FF, 8'h_00);

  _ctr = _ctr + 1;
  case ( _ctr )
    {
    1:       this._m_code     = PEC_PCI__MSG_CODE_VENDOR_TYPE_0;
    default: this._m_code     = urandom_range(8'h_FF, 8'h_00);
    }

  while ((this._m_code === PEC_PCI__MSG_CODE_ASSERT_INTA) ||
         (this._m_code === PEC_PCI__MSG_CODE_ASSERT_INTB) ||
         (this._m_code === PEC_PCI__MSG_CODE_ASSERT_INTC) ||
         (this._m_code === PEC_PCI__MSG_CODE_ASSERT_INTD) ||
         (this._m_code === PEC_PCI__MSG_CODE_DEASSERT_INTA) ||
         (this._m_code === PEC_PCI__MSG_CODE_DEASSERT_INTB) ||
         (this._m_code === PEC_PCI__MSG_CODE_DEASSERT_INTC) ||
         (this._m_code === PEC_PCI__MSG_CODE_DEASSERT_INTD) ||
         (this._m_code === PEC_PCI__MSG_CODE_PM_PME) ||
         (this._m_code === PEC_PCI__MSG_CODE_PM_TO_ACK) ||
         (this._m_code === PEC_PCI__MSG_CODE_ERR_COR) ||
         (this._m_code === PEC_PCI__MSG_CODE_ERR_NONFATAL) ||
         (this._m_code === PEC_PCI__MSG_CODE_ERR_FATAL) ||
         (this._m_code === PEC_PCI__MSG_CODE_ATTN) ||
         (this._m_code === PEC_PCI__MSG_CODE_VENDOR_TYPE_1)
         ) {
    this._m_code   = urandom_range(8'h_FF, 8'h_00);

    //    randcase {
    //      80 : this._m_code   = urandom_range(8'h_FF, 8'h_00);
    //      20 : this._m_code   = PEC_PCI__MSG_CODE_VENDOR_TYPE_0;
    //    }
  }

  //Denali Can't handle generating Messages with undefined types - review
  this._m_code = PEC_PCI__MSG_CODE_VENDOR_TYPE_0;
  printf("Message Code m_code = %x\n", this._m_code);

  this._addr       = {urandom(), urandom()};
  if( this._m_code == PEC_PCI__MSG_CODE_VENDOR_TYPE_0 ){
     randcase{
        1: this._type [2:0] = 3'b000;
        1: this._type [2:0] = 3'b010;
        1: this._type [2:0] = 3'b011;
        1: this._type [2:0] = 3'b100;
     }

     //review - Denali troubles with vendor defined messages
     this._addr = { this._type [2:0] == 3'b010 ? this._addr[63:48] : 16'h0,
                    random()%2 ? _env.Scenario.denaliVendorDefinedVendorID2 :
                                 _env.Scenario.denaliVendorDefinedVendorID1,
                    32'h0};
  }

  this._data       = urandom_range(255, 0);


  reqHdr [PEC_PCI__HDR]         = {128{1'b_0}};
  reqHdr [PEC_PCI__FMT]         = this._format;
  reqHdr [PEC_PCI__TYPE]        = this._type;
  reqHdr [PEC_PCI__TC]          = this._tc;
  reqHdr [PEC_PCI__TD]          = this._td;
  reqHdr [PEC_PCI__EP]          = this._ep;
  reqHdr [PEC_PCI__ATTR]        = this._attr;
  reqHdr [PEC_PCI__LEN]         = this._len;
  reqHdr [PEC_PCI__REQ_ID]      = this._req_id;
  reqHdr [PEC_PCI__TLP_TAG]     = this._tag;
  reqHdr [PEC_PCI__MSG_CODE]    = this._m_code;
  reqHdr [PEC_PCI__ADDR]        = this._addr;

  if ( super.f_abortErrTlp )
    {
    this._env.drivePCIE(reqHdr, this._data, *, *, *, 1);
    this._env.waitIngressLatency(reqHdr);
    }
  else
    {
    this._env.reserveIngressCredits(reqHdr);
    this._env.drivePCIE(reqHdr, this._data);
    this._env.consumeIngressCredits(reqHdr);
    this._env.expectILU(reqHdr, this._data);

    mailbox_put(this._errQueue, e_ERR_none);
    mailbox_put(this._errQueue, 2);
    mailbox_put(this._errQueue, e_ERR_ue_mfp);
    mailbox_put(this._errQueue, 128'bx0);
    mailbox_put(this._errQueue, e_ERR_ue_ur);
    reqHdr[31:0] = 0;
    mailbox_put(this._errQueue, reqHdr);
    }
}