// ========== Copyright Header Begin ========================================== // // OpenSPARC T2 Processor File: ilupeuEhbErrPEUStr.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 // // For the avoidance of doubt, and except that if any non-GPL license // choice is available it will apply instead, Sun elects to use only // the General Public License version 2 (GPLv2) at this time for any // software where a choice of GPL license versions is made // available with the language indicating that GPLv2 or any later version // may be used, or where a choice of which version of the GPL is applied is // otherwise unspecified. // // Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, // CA 95054 USA or visit www.sun.com if you need additional information or // have any questions. // // ========== Copyright Header End ============================================ class EhbErrPEUStr extends PEUStrBase { integer f_errQueue; // A mailbox for bad pkt headers integer f_len; // The packet's payload length bit f_lenSpecified; // Was a length specified? bit[4:0] f_type; // The packet's type bit f_typeSpecified; // Was a type specified? bit[3:0] f_mask; // Which bits to flip? task new( PEUTestEnv a_env ) { super.new( a_env ); f_errQueue = 0; f_lenSpecified = 0; f_typeSpecified = 0; f_mask = 4'b0; } task SetErrQueue( integer a_queue ) { f_errQueue = a_queue; } /* end SetErrQueue */ task SetLength( integer a_len ) { f_len = a_len; f_lenSpecified = 1; } /* end SetLength */ task SetType( integer a_type ) { f_type = a_type; f_typeSpecified = 1; } /* end SetType */ task SetMask( bit[3:0] a_mask ) { f_mask = a_mask; } /* end SetMask */ task Execute() { bit[PEC_PCI__HDR] egressHdr; // The egress TLP's header integer egressData; // A payload descriptor bit[7:0] tlpTag; // The tag for the TLP bit[7:0] egressAddr; // The DOU starting address bit[PEC_PCI__HDR] ingressHdr; // The ingress TLP's header integer ingressData; // A payload descriptor bit[3:0] errMask; bit hdrOnly; if ( f_mask != 0 ) errMask = f_mask; else errMask = urandom()%15 + 1; if ( f_lenSpecified && f_len == 0 ) hdrOnly = 1; else if ( f_lenSpecified ) hdrOnly = 0; else hdrOnly = urandom() % 2; // Build a TLP, using the specified // type and length, if any. if ( !f_typeSpecified ) { randcase { 4 : { f_type = PEC_PCI__TYPE_MEM; {if( hdrOnly ) f_len = urandom()%4 + 1; else f_len = urandom()%2 + 1;} } 1 : { f_type = PEC_PCI__TYPE_CFG0; f_len = 1; } 1 : { f_type = PEC_PCI__TYPE_CFG1; f_len = 1; } 1 : { f_type = PEC_PCI__TYPE_IO; f_len = 1; } 1 : { f_type = PEC_PCI__TYPE_CPL; f_len = urandom()%32 + 1; } } } else if ( !f_lenSpecified || f_len == 0 ) { if ( f_type == PEC_PCI__TYPE_CPL ) f_len = urandom()%32 + 1; else if ( (f_type == PEC_PCI__TYPE_MEM) && hdrOnly ) f_len = urandom()%4 + 1; else if ( (f_type == PEC_PCI__TYPE_MEM) && !hdrOnly ) f_len = urandom()%2 + 1; else f_len = 1; } // If a completion (with data) was // requested, then base it on a DMA // read request (which we won't submit). if ( f_type == PEC_PCI__TYPE_CPL ) { f_env.allocDmaTag( tlpTag ); f_env.genIngressRdReq( tlpTag, ingressHdr, ingressData, f_len ); f_env.genEgressCpl( ingressHdr, egressHdr, egressData ); f_env.allocCplData( ingressHdr[PEC_PCI__LEN], egressHdr[PEC_PCI__LOWADDR], egressAddr ); } // If a PIO-write was requested, // then get a tag and push a config // write through, just to be sure that // the tag isn't already in the pipe. else if ( !hdrOnly ) { f_env.allocWrTag( tlpTag, egressAddr ); f_env.genEgressWrReq( tlpTag, egressHdr, egressData, 1, PEC_PCI__TYPE_CFG0 ); f_env.driveILU( egressHdr, egressAddr, egressData ); f_env.expectPCIE( egressHdr, egressData ); f_env.genIngressCpl( egressHdr, ingressHdr, ingressData ); f_env.drivePCIE( ingressHdr, ingressData ); f_env.expectILU( ingressHdr, ingressData ); f_env.genEgressWrReq( tlpTag, egressHdr, egressData, f_len, f_type ); } else { f_env.allocRdTag( tlpTag ); f_env.genEgressRdReq( tlpTag, egressHdr, egressData, f_len, f_type ); } // Present the TLP to the ILU, and // specify that parity errors are to // be injected into the EHB. // We aren't going to release the tag // so that only one error is injected. f_env.injectEHBerror( tlpTag, errMask ); f_env.driveILU( egressHdr, egressAddr, egressData ); // We can't expect the TLP from the TLU // since it is corrupted. But we do // expect to enter the "drain state". f_env.enterDrainState(); // fork // f_env.expectPCIE( egressHdr, egressData ); // join none f_env.waitDrainState(); // Tell the error-checker about this // bad-boy. if ( f_errQueue != 0 ) { mailbox_put( f_errQueue, e_ERR_oe_ehp ); mailbox_put( f_errQueue, 128'hx ); } } /* end Execute */ } /* end EhbErrPEUStr */