// ========== Copyright Header Begin ==========================================
// OpenSPARC T2 Processor File: ilupeuIhbErrPEUStr.vr
// Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved
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// it under the terms of the GNU General Public License as published by
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// ========== Copyright Header End ============================================
class IhbErrPEUStr 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 are in error?
task new( PEUTestEnv a_env )
task SetErrQueue( integer a_queue )
task SetLength( integer a_len )
task SetType( integer a_type )
task SetMask( bit[3:0] a_mask )
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
errMask = urandom()%15 + 1;
// Build a TLP, using the specified
// type and length, if any.
4 : { f_type = PEC_PCI__TYPE_MEM; f_len = urandom()%16 + 1; }
1 : { f_type = PEC_PCI__TYPE_MSG; f_len = 1; }
1 : { f_type = PEC_PCI__TYPE_CPL; f_len = urandom()%4 + 1; }
else if ( !f_lenSpecified )
if ( f_type == PEC_PCI__TYPE_CPL )
else if ( f_type == PEC_PCI__TYPE_MEM )
f_len = urandom()%16 + 1;
// If a completion (with data) was
// requested, then base it on a PIO
if ( f_type == PEC_PCI__TYPE_CPL )
f_env.allocRdTag( tlpTag );
f_env.genEgressRdReq( tlpTag, egressHdr, egressData, f_len );
f_env.driveILU( egressHdr, 0, egressData );
f_env.expectPCIE( egressHdr, egressData );
f_env.genIngressCpl( egressHdr, ingressHdr, ingressData );
f_env.allocDmaTag( tlpTag );
f_env.genIngressRdReq( tlpTag, ingressHdr, ingressData );
f_env.genIngressWrReq( tlpTag, ingressHdr, ingressData, f_len );
// Tweak a couple of parameters for IOS so it looks like a bypass packet
ingressHdr[PEC_PCI__FMT_4DW] = 1;
address = ingressHdr[PEC_PCI__ADDR];
address[63:39] = 25'h1fff800;
ingressHdr[PEC_PCI__ADDR] = address;
// Present the TLP to the TLU, and
// specify that parity errors are to
// be injected into the IHB.
// We aren't going to release the tag
// so that only one error is injected.
f_env.reserveIngressCredits( ingressHdr );
f_env.injectIHBerror( tlpTag, errMask );
f_env.drivePCIE( ingressHdr, ingressData );
f_env.consumeIngressCredits( ingressHdr );
// We can't expect the TLP from the ILU
// since it is corrupted. But we do
// expect to enter the "drain state".
// We have to wait for a bit before
// we can tell the error-checker
// f_env.waitIngressLatency( ingressHdr );
//N2 review while( !IHB.err ) @(posedge IHB.clk);
// Free the tag if we sent in a PIO req.
// if ( f_type == PEC_PCI__TYPE_CPL )
// f_env.freePioTag( tlpTag );
// Tell the error-checker about this
mailbox_put( f_errQueue, e_ERR_ilu_ihb );
mailbox_put( f_errQueue, ingressHdr );