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1 | // ========== Copyright Header Begin ========================================== |
2 | // | |
3 | // OpenSPARC T2 Processor File: ilupeuDmaPoisonPEUStr.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 | class DmaPoisonPEUStr extends PEUStrBase | |
36 | { | |
37 | integer f_len; // The packet's payload length | |
38 | bit f_lenSpecified; // Was a length specified? | |
39 | bit [4:0] f_type; // The request's type | |
40 | bit f_data; // Does the request have data? | |
41 | bit f_typeSpecified; // Was a length specified? | |
42 | integer f_errQueue; | |
43 | ||
44 | task new( PEUTestEnv a_env ) | |
45 | { | |
46 | super.new( a_env ); | |
47 | f_lenSpecified = 0; | |
48 | f_typeSpecified = 0; | |
49 | f_errQueue = 0; | |
50 | } | |
51 | task SetLen( integer a_len ) | |
52 | { | |
53 | f_len = a_len; | |
54 | f_lenSpecified = 1; | |
55 | } | |
56 | task SetType( bit[5:0] a_type, bit a_data ) | |
57 | { | |
58 | f_type = a_type; | |
59 | f_data = a_data; | |
60 | f_typeSpecified = 1; | |
61 | } | |
62 | task SetErrQueue( integer a_queue ) | |
63 | { | |
64 | f_errQueue = a_queue; | |
65 | } /* end SetErrQueue */ | |
66 | ||
67 | task Execute() | |
68 | { | |
69 | bit[PEC_PCI__HDR] ingressHdr; // The ingress TLP's header | |
70 | integer ingressData; // A payload descriptor | |
71 | bit[7:0] ingressTag; // The tag for the TLP | |
72 | ||
73 | // What are we doing? | |
74 | if ( !f_typeSpecified ) | |
75 | { | |
76 | randcase | |
77 | { | |
78 | 1: f_type = PEC_PCI__TYPE_MEM; | |
79 | 1: f_type = PEC_PCI__TYPE_MSG; | |
80 | } | |
81 | randcase | |
82 | { | |
83 | 1: f_data = 0; | |
84 | 1: f_data = 1; | |
85 | } | |
86 | } | |
87 | if ( !f_lenSpecified ) f_len = urandom()%8 + 1; | |
88 | ||
89 | // First, get in line for a DMA tag... | |
90 | f_env.allocDmaTag( ingressTag ); | |
91 | ||
92 | // Then build a TLP | |
93 | if ( f_type == PEC_PCI__TYPE_MSG ) | |
94 | f_env.genIngressMsg( ingressTag, ingressHdr, ingressData ); | |
95 | else if ( f_data ) | |
96 | f_env.genIngressWrReq( ingressTag, ingressHdr, ingressData, f_len ); | |
97 | else | |
98 | f_env.genIngressRdReq( ingressTag, ingressHdr, ingressData, f_len ); | |
99 | ||
100 | //Denali can hold a TLP from being transmitted if a previous TLP | |
101 | // with the same tag and Request ID has not completed yet. This only | |
102 | // should happen with error TLPs. To help with this make all bad REQs | |
103 | // PEC_PCI__REQ_ID[0] = 1 | |
104 | ingressHdr[80] = 1'b1; | |
105 | ||
106 | // Set the "poisoned" bit, and then | |
107 | // push the beastie into the TLU. | |
108 | ingressHdr[PEC_PCI__EP] = 1; | |
109 | printf("(DmaPoison IngressHdr) EP : %x TYPE :%x FMT : %x TC : %x\n", | |
110 | ingressHdr[PEC_PCI__EP], | |
111 | ingressHdr[PEC_PCI__TYPE], | |
112 | ingressHdr[PEC_PCI__FMT], | |
113 | ingressHdr[PEC_PCI__TC]); | |
114 | ||
115 | printf("(DmaPoison IngressHdr) ATTR : %x REQ_ID : %x MSG_CODE : %x\n", | |
116 | ingressHdr[PEC_PCI__ATTR], | |
117 | ingressHdr[PEC_PCI__REQ_ID], | |
118 | ingressHdr[PEC_PCI__MSG_CODE] | |
119 | ); | |
120 | ||
121 | if( (f_type != PEC_PCI__TYPE_MSG) && !f_data ){ | |
122 | f_env.Pod.FNXPCIEEnableTrans.tempSuppressDenaliErr( PCIE_TL_NONFATAL_TLP_MF_vlPoison ); | |
123 | } | |
124 | ||
125 | //If a test calls this then we'll just disable this check for duration | |
126 | f_env.Pod.FNXPCIEEnableTrans.tempSuppressDenaliErr( PCIE_TL_COR_TLP_USERTAG_2 ); | |
127 | ||
128 | if ( super.f_abortErrTlp ) | |
129 | { | |
130 | f_env.drivePCIE( ingressHdr, ingressData, *, *, *, 1 ); | |
131 | f_env.waitIngressLatency( ingressHdr ); | |
132 | } | |
133 | else | |
134 | { | |
135 | f_env.reserveIngressCredits( ingressHdr ); | |
136 | f_env.drivePCIE( ingressHdr, ingressData ); | |
137 | f_env.consumeIngressCredits( ingressHdr ); | |
138 | if ( ingressHdr[PEC_PCI__FMT_DATA] ) | |
139 | f_env.waitIngressLatency( ingressHdr ); | |
140 | else | |
141 | f_env.expectILU( ingressHdr, ingressData ); | |
142 | } | |
143 | f_env.freeDmaTag( ingressTag ); | |
144 | if( (f_type != PEC_PCI__TYPE_MSG) && !f_data ){ | |
145 | f_env.Pod.FNXPCIEEnableTrans.unSuppressDenaliErr( PCIE_TL_NONFATAL_TLP_MF_vlPoison ); | |
146 | } | |
147 | ||
148 | // Put a "poisoned" error into the | |
149 | // error-queue, if one was supplied. | |
150 | if ( f_errQueue != 0 && ingressHdr[PEC_PCI__FMT_DATA] ) | |
151 | { | |
152 | printf( "DmaPoison - Add poisoned header to error queue\n" ); | |
153 | mailbox_put( f_errQueue, e_ERR_ue_pp ); | |
154 | mailbox_put( f_errQueue, ingressHdr ); | |
155 | } | |
156 | else if ( f_errQueue != 0 ) | |
157 | { | |
158 | mailbox_put( f_errQueue, e_ERR_none ); | |
159 | mailbox_put( f_errQueue, 0 ); | |
160 | } | |
161 | printf( "DmaPoison - Done!\n" ); | |
162 | } /* end Execute */ | |
163 | } /* end DmaPoison */ |