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1 | // ========== Copyright Header Begin ========================================== |
2 | // | |
3 | // OpenSPARC T2 Processor File: ilupeuIngressAckNakErr.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 ilupeuIngressAckNakErr extends PEUStrBase | |
36 | { | |
37 | integer f_errQueue; // A mailbox for bad pkt headers | |
38 | ||
39 | integer nmbrAckNakErrsToInject = 10; //Total number of packets that get error injected | |
40 | //Set the percentage weight of each type of receiver error | |
41 | integer DLLPAckLessthanAckedErrWeight = 10; | |
42 | integer DLLPNakLessthanAckedErrWeight = 10; | |
43 | integer DLLPAckmorethanTLPNxtSeqErrWeight = 10; | |
44 | integer DLLPNakmorethanTLPNxtSeqErrWeight = 10; | |
45 | denaliPcieEiTypeT DenaliErrortype; | |
46 | string DLLPtype; | |
47 | ||
48 | //Only allow 1 of these strategies to be active at a time | |
49 | static integer AckNakErr_semaphore = alloc(SEMAPHORE, 0, 1, 1); | |
50 | ||
51 | task new( PEUTestEnv a_env ) | |
52 | { | |
53 | super.new( a_env ); | |
54 | f_errQueue = 0; | |
55 | } | |
56 | ||
57 | task SetErrQueue( integer a_queue ) | |
58 | { | |
59 | f_errQueue = a_queue; | |
60 | } /* end SetErrQueue */ | |
61 | ||
62 | task Execute() | |
63 | { | |
64 | integer nmbrErrs; | |
65 | integer DLLPAckNakErrsInject_freq = 100; // freq of clock cycles to inject this error | |
66 | integer nmbrDLLPAckNakErrsInjected; | |
67 | integer SeqNum = 0 ; | |
68 | integer seqnum_adjust = 2; | |
69 | string value = ""; | |
70 | integer DLP_error_inject = 0; | |
71 | ||
72 | ||
73 | //Get the semaphore when its your turn | |
74 | semaphore_get( WAIT, AckNakErr_semaphore, 1); | |
75 | ||
76 | ||
77 | //Clear all the specific error trackers | |
78 | nmbrDLLPAckNakErrsInjected = 0; | |
79 | ||
80 | // create random number to cause Ack/Nak DLLP type | |
81 | DLLPAckNakErrsInject_freq = (urandom() % 20) + 20; | |
82 | ||
83 | // PCIEDllpTrans = new( Pod.FNXPCIEBldr ); | |
84 | ||
85 | //inject errors until all the errors are injected | |
86 | while (nmbrAckNakErrsToInject > nmbrDLLPAckNakErrsInjected) { | |
87 | ||
88 | ||
89 | // adjust sequence number by 2 to 4097 | |
90 | // seqnum_adjust = (urandom() % 50) + 2; | |
91 | seqnum_adjust = (urandom() % 4095) + 2; | |
92 | ||
93 | //determine the type of errors inject based on the weight specified in the testcase | |
94 | randcase { | |
95 | // DLLPAckLessthanAckedErrWeight: {SeqNum = f_env.AckdSeqNum - 1; DLLPtype = "ack"; value = "less than"; } | |
96 | // DLLPNakLessthanAckedErrWeight : {SeqNum = f_env.AckdSeqNum - 1; DLLPtype = "nak"; value = "less than"; } | |
97 | // DLLPAckLessthanAckedErrWeight: {SeqNum = f_env.AckdSeqNum - seqnum_adjust; DLLPtype = "ack"; value = "less than"; } | |
98 | // DLLPNakLessthanAckedErrWeight : {SeqNum = f_env.AckdSeqNum - seqnum_adjust; DLLPtype = "nak"; value = "less than"; } | |
99 | // DLLPAckmorethanTLPNxtSeqErrWeight: { | |
100 | // // SeqNum = f_env.Pod.FNXPCIEEnableTrans.ReadDenaliReg(PCIE_REG_DEN_NXT_TX_TLP_SEQ) + 1; | |
101 | // SeqNum = f_env.Pod.FNXPCIEEnableTrans.ReadDenaliReg(PCIE_REG_DEN_NXT_TX_TLP_SEQ) + seqnum_adjust; | |
102 | // DLLPtype = "ack"; value = "more than"; } | |
103 | // DLLPNakmorethanTLPNxtSeqErrWeight: { | |
104 | // // SeqNum = f_env.Pod.FNXPCIEEnableTrans.ReadDenaliReg(PCIE_REG_DEN_NXT_TX_TLP_SEQ) + 1; | |
105 | // SeqNum = f_env.Pod.FNXPCIEEnableTrans.ReadDenaliReg(PCIE_REG_DEN_NXT_TX_TLP_SEQ) + seqnum_adjust; | |
106 | // DLLPtype = "nak" ; value = "more than";} | |
107 | ||
108 | DLLPAckLessthanAckedErrWeight: {SeqNum = f_env.AckdSeqNum - seqnum_adjust; DLLPtype = "ack"; value = "less than"; DLP_error_inject = 1; f_env.Pod.denali_root_monitor_PCIEEnableTrans.tempSuppressDenaliErr(PCIE_DL_FATAL_PROTOCOL_ERROR);} | |
109 | DLLPNakLessthanAckedErrWeight : {SeqNum = f_env.AckdSeqNum - seqnum_adjust; DLLPtype = "nak"; value = "less than"; DLP_error_inject = 1; f_env.Pod.denali_root_monitor_PCIEEnableTrans.tempSuppressDenaliErr(PCIE_DL_FATAL_PROTOCOL_ERROR);} | |
110 | DLLPAckmorethanTLPNxtSeqErrWeight: { | |
111 | // SeqNum = f_env.Pod.FNXPCIEEnableTrans.ReadDenaliReg(PCIE_REG_DEN_NXT_TX_TLP_SEQ) + 1; | |
112 | SeqNum = f_env.Pod.FNXPCIEEnableTrans.ReadDenaliReg(PCIE_REG_DEN_NXT_TX_TLP_SEQ) + seqnum_adjust; | |
113 | DLLPtype = "ack"; value = "more than"; DLP_error_inject = 1; f_env.Pod.denali_root_monitor_PCIEEnableTrans.tempSuppressDenaliErr(PCIE_DL_FATAL_PROTOCOL_ERROR);} | |
114 | DLLPNakmorethanTLPNxtSeqErrWeight: { | |
115 | // SeqNum = f_env.Pod.FNXPCIEEnableTrans.ReadDenaliReg(PCIE_REG_DEN_NXT_TX_TLP_SEQ) + 1; | |
116 | SeqNum = f_env.Pod.FNXPCIEEnableTrans.ReadDenaliReg(PCIE_REG_DEN_NXT_TX_TLP_SEQ) + seqnum_adjust; | |
117 | DLLPtype = "nak" ; value = "more than"; DLP_error_inject = 1; | |
118 | f_env.Pod.denali_root_monitor_PCIEEnableTrans.tempSuppressDenaliErr(PCIE_DL_FATAL_PROTOCOL_ERROR); } | |
119 | ||
120 | } | |
121 | ||
122 | f_env.Pod.FNXPCIEEnableTrans.tempSuppressDenaliErr( PCIE_DL_FATAL_PROTOCOL_ERROR ); | |
123 | ||
124 | printf("AC: at time %0d, SeqNum to be sent = %d, DLLPtype = %0s, value = %s \n", get_time(LO), SeqNum, DLLPtype, value); | |
125 | // sending the ack or nak | |
126 | if (DLLPtype == "ack") { | |
127 | f_env.sendAck(SeqNum); | |
128 | } | |
129 | if (DLLPtype == "nak") { | |
130 | f_env.sendNak(SeqNum); | |
131 | } | |
132 | ||
133 | ||
134 | nmbrDLLPAckNakErrsInjected += 1; | |
135 | printf("AC: IngressDLLAckNakErr injects error: nmbrDLLPAckNakErrsInjected=%0d nmbrAckNakErrsToInject=%0d \n",nmbrDLLPAckNakErrsInjected, nmbrAckNakErrsToInject); | |
136 | ||
137 | repeat (DLLPAckNakErrsInject_freq) @(posedge CLOCK); | |
138 | } | |
139 | ||
140 | ||
141 | ||
142 | //Delay to allow the last error to propogate before checking | |
143 | repeat( 100 ) @(posedge CLOCK); | |
144 | ||
145 | //Track possible errors based on the type of errors injected | |
146 | nmbrErrs = 0; // number of error type that got set. | |
147 | ||
148 | printf("AC: nmbrErrs = %d \n", nmbrErrs); | |
149 | ||
150 | if (nmbrDLLPAckNakErrsInjected == 1) { | |
151 | nmbrErrs += 1; // only primary ce error got set. | |
152 | } | |
153 | else if (nmbrDLLPAckNakErrsInjected > 1) { | |
154 | nmbrErrs += 2; // both primary and secondary ce errors got set. | |
155 | } | |
156 | ||
157 | ||
158 | ||
159 | if( f_errQueue != 0 ){ | |
160 | ||
161 | // note: bx = no header to check | |
162 | // bx0 = error above is optional. clear it if it's set | |
163 | ||
164 | mailbox_put( f_errQueue, e_ERR_none ); | |
165 | mailbox_put( f_errQueue, nmbrErrs ); | |
166 | ||
167 | mailbox_put( f_errQueue, e_ERR_ue_dlp ); // e_ERR_ue_dlp = DLLP protocol error | |
168 | mailbox_put( f_errQueue, 128'bx ); | |
169 | mailbox_put( f_errQueue, e_ERR_ue_dlp ); // e_ERR_ue_dlp = DLLP protocol error | |
170 | mailbox_put( f_errQueue, 128'bx ); | |
171 | ||
172 | } // f_errQueue !=0 | |
173 | ||
174 | // after the errors are injected, then do not suppress the error detection | |
175 | if( DLP_error_inject ){ | |
176 | f_env.Pod.denali_root_monitor_PCIEEnableTrans.unSuppressDenaliErr(PCIE_DL_FATAL_PROTOCOL_ERROR); | |
177 | DLP_error_inject = 0; | |
178 | } | |
179 | ||
180 | ||
181 | repeat( 10 ) @(posedge CLOCK); | |
182 | semaphore_put( AckNakErr_semaphore, 1 ); | |
183 | ||
184 | } /* end Execute */ | |
185 | ||
186 | } /* end IngressUnsupportDLLPErr */ |