| 1 | // ========== Copyright Header Begin ========================================== |
| 2 | // |
| 3 | // OpenSPARC T2 Processor File: ilupeuMalCplPEUStr.vr |
| 4 | // Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved |
| 5 | // 4150 Network Circle, Santa Clara, California 95054, U.S.A. |
| 6 | // |
| 7 | // * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 8 | // |
| 9 | // This program is free software; you can redistribute it and/or modify |
| 10 | // it under the terms of the GNU General Public License as published by |
| 11 | // the Free Software Foundation; version 2 of the License. |
| 12 | // |
| 13 | // This program is distributed in the hope that it will be useful, |
| 14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | // GNU General Public License for more details. |
| 17 | // |
| 18 | // You should have received a copy of the GNU General Public License |
| 19 | // along with this program; if not, write to the Free Software |
| 20 | // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 21 | // |
| 22 | // For the avoidance of doubt, and except that if any non-GPL license |
| 23 | // choice is available it will apply instead, Sun elects to use only |
| 24 | // the General Public License version 2 (GPLv2) at this time for any |
| 25 | // software where a choice of GPL license versions is made |
| 26 | // available with the language indicating that GPLv2 or any later version |
| 27 | // may be used, or where a choice of which version of the GPL is applied is |
| 28 | // otherwise unspecified. |
| 29 | // |
| 30 | // Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 31 | // CA 95054 USA or visit www.sun.com if you need additional information or |
| 32 | // have any questions. |
| 33 | // |
| 34 | // ========== Copyright Header End ============================================ |
| 35 | #define _INFO_MSG_MAL_CPL(msg) printf( "MalCpl (cyc %0d) %s\n", get_cycle(), msg ) |
| 36 | |
| 37 | class MalCplPEUStr extends PEUStrBase |
| 38 | { |
| 39 | local bit f_typeSpecified; // Was a bad-boy type supplied? |
| 40 | local bit [1:0] f_fmt; // The bad format |
| 41 | local bit [4:0] f_type; // The bad type |
| 42 | local bit f_lenSpecified; // Was a TLP length supplied? |
| 43 | local integer f_len; // A requested TLP length |
| 44 | local integer f_cross4K; // By what amount do we cross 4K |
| 45 | local integer f_adjustLen; // The delta to the true length |
| 46 | local integer f_errQueue; // A mailbox for bad pkt headers |
| 47 | local bit f_tdSpecified; // Was the TD supplied? |
| 48 | local bit f_tdFieldValue; // The TD value |
| 49 | local integer f_solicitedCpl; |
| 50 | |
| 51 | task new( PEUTestEnv a_env ) |
| 52 | { |
| 53 | super.new( a_env ); |
| 54 | f_typeSpecified = 0; |
| 55 | f_lenSpecified = 0; |
| 56 | f_errQueue = 0; |
| 57 | f_adjustLen = 0; |
| 58 | f_cross4K = 0; |
| 59 | |
| 60 | f_tdSpecified = 0; |
| 61 | f_solicitedCpl = 1; |
| 62 | } /* end new */ |
| 63 | |
| 64 | function bit SetType( bit [1:0] a_fmt, bit [4:0] a_type ) |
| 65 | { |
| 66 | bit isInvalid; |
| 67 | |
| 68 | f_typeSpecified = 1; |
| 69 | f_type = a_type; |
| 70 | f_fmt = a_fmt; |
| 71 | |
| 72 | case ( a_fmt ) { |
| 73 | 2'b00 : isInvalid = !( PEC_PCI__TYPE_VALID_00 & ( 1 << a_type ) ); |
| 74 | 2'b01 : isInvalid = !( PEC_PCI__TYPE_VALID_01 & ( 1 << a_type ) ); |
| 75 | 2'b10 : isInvalid = !( PEC_PCI__TYPE_VALID_10 & ( 1 << a_type ) ); |
| 76 | 2'b11 : isInvalid = !( PEC_PCI__TYPE_VALID_11 & ( 1 << a_type ) ); |
| 77 | } |
| 78 | |
| 79 | SetType = isInvalid; |
| 80 | } /* end SetType */ |
| 81 | |
| 82 | task SetLength( integer a_length ) |
| 83 | { |
| 84 | f_len = a_length; |
| 85 | f_lenSpecified = 1; |
| 86 | } /* end AdjustLen */ |
| 87 | |
| 88 | task AdjustLen( integer a_lengthDelta ) |
| 89 | { |
| 90 | f_adjustLen = a_lengthDelta; |
| 91 | } /* end AdjustLen */ |
| 92 | |
| 93 | task Cross4K( integer a_dwCount ) |
| 94 | { |
| 95 | f_cross4K = a_dwCount; |
| 96 | } /* end AdjustLen */ |
| 97 | |
| 98 | task SetErrQueue( integer a_queue ) |
| 99 | { |
| 100 | f_errQueue = a_queue; |
| 101 | } /* end SetErrQueue */ |
| 102 | |
| 103 | task SetTD( bit a_TDValue ) |
| 104 | { |
| 105 | f_tdFieldValue = a_TDValue; |
| 106 | f_tdSpecified = 1; |
| 107 | } /* end SetTD */ |
| 108 | |
| 109 | task SetSolicited( integer a_solicited ) |
| 110 | { |
| 111 | f_solicitedCpl = a_solicited; |
| 112 | } |
| 113 | |
| 114 | task Execute() |
| 115 | { |
| 116 | bit [ PEC_PCI__HDR ] reqHdr; // The request TLP's header |
| 117 | bit [ PEC_PCI__HDR ] cplHdr; // The completion TLP's header |
| 118 | bit [ PEC_PCI__HDR ] badCplHdr; // The corrupted completion TLP's header |
| 119 | bit [ 7:0 ] reqTag; // The tag for the TLP |
| 120 | integer pyld; // Reusable pyld variable |
| 121 | |
| 122 | // Get in line for a PIO tag |
| 123 | if ( f_solicitedCpl ) |
| 124 | f_env.allocRdTag( reqTag ); |
| 125 | else |
| 126 | reqTag = urandom(); |
| 127 | // Then build a TLP. |
| 128 | // Only PIO reads need completions |
| 129 | if ( f_typeSpecified ) { |
| 130 | if ( f_lenSpecified ) |
| 131 | f_env.genEgressRdReq( reqTag, reqHdr, pyld, f_len, f_type ); |
| 132 | else |
| 133 | f_env.genEgressRdReq( reqTag, reqHdr, pyld, *, f_type ); |
| 134 | } |
| 135 | else { |
| 136 | if ( f_lenSpecified ) |
| 137 | f_env.genEgressRdReq( reqTag, reqHdr, pyld, f_len, * ); |
| 138 | else |
| 139 | f_env.genEgressRdReq( reqTag, reqHdr, pyld ); |
| 140 | } |
| 141 | // make sure RequesterID is 0, since RSB |
| 142 | // will check that the completion has this |
| 143 | // field set to 0 |
| 144 | reqHdr[ PEC_PCI__REQ_ID ] = 16'h0; |
| 145 | // adjust the Fmt field, since it |
| 146 | // might not be what we want |
| 147 | if( f_typeSpecified ) { |
| 148 | reqHdr[ PEC_PCI__FMT_4DW ] = f_fmt[ 0 ]; |
| 149 | if ( reqHdr[ PEC_PCI__FMT_4DW ] === 1'b1 ){ |
| 150 | reqHdr[ PEC_PCI__ADDR ] = {urandom(),urandom()}; |
| 151 | }else{ //Make sure addr[1:0] = 0 |
| 152 | reqHdr[33:32] = 0; |
| 153 | } |
| 154 | |
| 155 | } |
| 156 | |
| 157 | // create completion based on PIO req |
| 158 | f_env.genIngressCpl( reqHdr, cplHdr, pyld ); |
| 159 | badCplHdr = cplHdr; |
| 160 | // corrupt the ingress completion |
| 161 | if ( f_cross4K != 0 ) { |
| 162 | // not implemented yet |
| 163 | } |
| 164 | if ( f_tdSpecified ) { |
| 165 | badCplHdr[ PEC_PCI__TD ] = f_tdFieldValue; |
| 166 | } |
| 167 | |
| 168 | // Force the digest if we've got a |
| 169 | // cpl without data and a negative |
| 170 | // 'adjustment'. |
| 171 | if ( f_adjustLen < 0 && !badCplHdr[PEC_PCI__FMT_DATA] ) |
| 172 | badCplHdr[PEC_PCI__TD] = 1; |
| 173 | |
| 174 | // Check if cpl is supposed to be expected |
| 175 | if ( f_solicitedCpl ) { |
| 176 | // drive the ILU with the request |
| 177 | _INFO_MSG_MAL_CPL( psprintf("Sending PIO request (tag=%h)",reqTag) ); |
| 178 | f_env.driveILU( reqHdr, 0, 0 ); |
| 179 | // expect the request out the TLU |
| 180 | f_env.expectPCIE( reqHdr, 0 ); |
| 181 | // drive the TLU with the bad cpl |
| 182 | // and free the PIO tag |
| 183 | f_env.drivePCIE( badCplHdr, pyld, f_adjustLen, *, *, f_abortErrTlp ); |
| 184 | _INFO_MSG_MAL_CPL( psprintf("Sending malformed completion (tag=%h)",reqTag) ); |
| 185 | |
| 186 | f_env.waitIngressLatency( badCplHdr, (f_adjustLen>0) ? f_adjustLen : 0 ); |
| 187 | |
| 188 | if ( f_errQueue != 0 ) { |
| 189 | mailbox_put( f_errQueue, e_ERR_ue_mfp ); |
| 190 | mailbox_put( f_errQueue, (f_adjustLen<0) ? 128'bx : cplHdr ); |
| 191 | } |
| 192 | |
| 193 | f_env.drivePCIE( cplHdr, pyld ); |
| 194 | |
| 195 | f_env.expectILU( cplHdr, pyld ); |
| 196 | |
| 197 | f_env.freePioTag( reqTag ); |
| 198 | } |
| 199 | else { /* unsolicited cpl */ |
| 200 | f_env.drivePCIE( badCplHdr, pyld, f_adjustLen, *, *, f_abortErrTlp ); |
| 201 | _INFO_MSG_MAL_CPL( psprintf("Sending malformed completion (tag=%h)",reqTag) ); |
| 202 | |
| 203 | f_env.waitIngressLatency( badCplHdr, (f_adjustLen>0) ? f_adjustLen : 0 ); |
| 204 | |
| 205 | if( f_errQueue != 0 ) { |
| 206 | mailbox_put( f_errQueue, e_ERR_ue_mfp ); |
| 207 | mailbox_put( f_errQueue, (f_adjustLen<0) ? 128'bx : cplHdr ); |
| 208 | } |
| 209 | } |
| 210 | } /* end Execute */ |
| 211 | } /* end MalCplPEUStr */ |
| 212 | |