| 1 | // ========== Copyright Header Begin ========================================== |
| 2 | // |
| 3 | // OpenSPARC T2 Processor File: FNXPCIEXactorFCEngine.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 | #include "DenaliPCIE.vri" |
| 36 | |
| 37 | // FNXPCIEXactor library |
| 38 | #include "FNXPCIEXactorDefines.vri" |
| 39 | |
| 40 | // report library |
| 41 | #include "cReport.vrh" |
| 42 | #include "FNXPCIEXactorReportMacros.vri" |
| 43 | |
| 44 | class FNXPCIEXactorFCEngine { |
| 45 | |
| 46 | // Base Class and Method Names For QR Macros |
| 47 | local string ClassName = "FNXPCIEXactorFCEngine"; |
| 48 | local string MethodName = null; |
| 49 | |
| 50 | local ReportClass MyReport; |
| 51 | local string XactorName; |
| 52 | local FNXPCIEXactorSignalInterface SignalInterface; |
| 53 | local FNXPCIEXactorDenaliClkPort DenaliClkPort; |
| 54 | local FNXPCIEXactorUtilities Util; |
| 55 | |
| 56 | protected bit FCTimerEnable[FNX_PCIE_XTR_NUM_FC_TYPES]; |
| 57 | protected integer FCTimerMax[FNX_PCIE_XTR_NUM_FC_TYPES]; |
| 58 | protected integer FCTimerVal[FNX_PCIE_XTR_NUM_FC_TYPES]; |
| 59 | protected integer FCUpdateIncMin[FNX_PCIE_XTR_NUM_FC_TYPES]; |
| 60 | protected integer FCUpdateIncMax[FNX_PCIE_XTR_NUM_FC_TYPES]; |
| 61 | |
| 62 | // constructor |
| 63 | task new( ReportClass _Report, |
| 64 | FNXPCIEXactorSignalInterface _SignalInterface, |
| 65 | FNXPCIEXactorDenaliClkPort _DenaliClkPort, |
| 66 | FNXPCIEXactorUtilities _Util, |
| 67 | string _XactorName ); |
| 68 | |
| 69 | // public methods |
| 70 | task Reset(); |
| 71 | task GenFCUpdates(); |
| 72 | task EnableFCTimer( denaliPcieFcTypeT denFcType ); |
| 73 | task DisableFCTimer( denaliPcieFcTypeT denFcType ); |
| 74 | task SetFCTimerMax( denaliPcieFcTypeT denFcType, integer fcTimerMax ); |
| 75 | task SetFCUpdateRange( denaliPcieFcTypeT denFcType, integer fcUpdateMin, integer fcUpdateMax ); |
| 76 | task SetFCData( denaliPcieFcTypeT denFcType, denaliPcieFcIdT denFcId, |
| 77 | bit [FNX_PCIE_XTR_REG_DEN_FC_CTRL_DATA_VAL_WIDTH-1:0] fcData ); |
| 78 | function bit[FNX_PCIE_XTR_REG_DEN_FC_CTRL_DATA_VAL_WIDTH-1:0] GetFCData( denaliPcieFcTypeT denFcType, |
| 79 | denaliPcieFcIdT denFcId ); |
| 80 | } |
| 81 | |
| 82 | task FNXPCIEXactorFCEngine::new( ReportClass _Report, |
| 83 | FNXPCIEXactorSignalInterface _SignalInterface, |
| 84 | FNXPCIEXactorDenaliClkPort _DenaliClkPort, |
| 85 | FNXPCIEXactorUtilities _Util, |
| 86 | string _XactorName ) { |
| 87 | string MethodName = "new"; |
| 88 | |
| 89 | MyReport = _Report; |
| 90 | SignalInterface = _SignalInterface; |
| 91 | DenaliClkPort = _DenaliClkPort; |
| 92 | Util = _Util; |
| 93 | XactorName = _XactorName; |
| 94 | Reset(); |
| 95 | |
| 96 | // Start FC Update Engine |
| 97 | GenFCUpdates(); |
| 98 | } |
| 99 | |
| 100 | task FNXPCIEXactorFCEngine::Reset() { |
| 101 | string MethodName = "Reset"; |
| 102 | integer i; |
| 103 | |
| 104 | for (i=0; i < FNX_PCIE_XTR_NUM_FC_TYPES; i++) { |
| 105 | FCTimerEnable[i] = 0; |
| 106 | FCTimerMax[i] = 100; |
| 107 | FCTimerVal[i] = 100; |
| 108 | FCUpdateIncMin[i] = 1; |
| 109 | FCUpdateIncMax[i] = 1; |
| 110 | } |
| 111 | } |
| 112 | |
| 113 | task FNXPCIEXactorFCEngine::GenFCUpdates() { |
| 114 | string MethodName = "GenFCUpdates"; |
| 115 | bit [FNX_PCIE_XTR_REG_DEN_FC_CTRL_DATA_VAL_WIDTH-1:0] fcUpdateInc; |
| 116 | denaliPcieFcTypeT denFcType; |
| 117 | integer i; |
| 118 | |
| 119 | fork { |
| 120 | while (1) { |
| 121 | for (i=0; i < FNX_PCIE_XTR_NUM_FC_TYPES; i++) { |
| 122 | if (FCTimerEnable[i]) { |
| 123 | FCTimerVal[i]--; |
| 124 | if (FCTimerVal[i] === 0) { |
| 125 | denFcType = Util.FCEncToDenaliType(i); |
| 126 | fcUpdateInc = Util.RandUtil.Rand32( FCUpdateIncMin[i], FCUpdateIncMax[i] ); |
| 127 | SetFCData( denFcType, PCIE_FCID_RX_ALLOCATED, |
| 128 | GetFCData( denFcType, PCIE_FCID_RX_ALLOCATED ) + fcUpdateInc ); |
| 129 | PCIEX_QR_I( "%s-> Set Inc=%h For Next %s Update", |
| 130 | XactorName, fcUpdateInc, denFcType ); |
| 131 | } |
| 132 | if (FCTimerVal[i] < 0) { |
| 133 | FCTimerVal[i] = FCTimerMax[i]; |
| 134 | } |
| 135 | } |
| 136 | } |
| 137 | @(posedge DenaliClkPort.$tx_clk); // Clock At Same Rate As Denali FC Timers (250 MHz PCIE, Not Raptor Clock) |
| 138 | } |
| 139 | } join none |
| 140 | } |
| 141 | |
| 142 | task FNXPCIEXactorFCEngine::SetFCData( denaliPcieFcTypeT denFcType, |
| 143 | denaliPcieFcIdT denFcId, |
| 144 | bit [FNX_PCIE_XTR_REG_DEN_FC_CTRL_DATA_VAL_WIDTH-1:0] fcData ) { |
| 145 | string MethodName = "SetFCData"; |
| 146 | bit [FNX_PCIE_XTR_REG_DEN_WIDTH-1:0] fcRegVal; |
| 147 | integer idenFcType, iFcOp, iVc, iFcId; |
| 148 | |
| 149 | idenFcType = denFcType; |
| 150 | iFcOp = PCIE_FCCTRL_set; |
| 151 | iVc = PCIE_VCID_VC0; // FNX Only Implements VC 0 |
| 152 | iFcId = denFcId; |
| 153 | fcRegVal = 0; |
| 154 | fcRegVal[FNX_PCIE_XTR_REG_DEN_FC_CTRL_FC_TYPE_SLC] = idenFcType; |
| 155 | fcRegVal[FNX_PCIE_XTR_REG_DEN_FC_CTRL_VC_SLC] = iVc; |
| 156 | fcRegVal[FNX_PCIE_XTR_REG_DEN_FC_CTRL_FC_CMD_SLC] = iFcOp; |
| 157 | fcRegVal[FNX_PCIE_XTR_REG_DEN_FC_CTRL_FC_ID_SLC] = iFcId; |
| 158 | fcRegVal[FNX_PCIE_XTR_REG_DEN_FC_CTRL_DATA_VAL_SLC] = fcData; |
| 159 | SignalInterface.WriteDenaliReg( PCIE_REG_DEN_FC_CTRL, fcRegVal ); |
| 160 | } |
| 161 | |
| 162 | function bit[FNX_PCIE_XTR_REG_DEN_FC_CTRL_DATA_VAL_WIDTH-1:0] FNXPCIEXactorFCEngine::GetFCData( denaliPcieFcTypeT denFcType, |
| 163 | denaliPcieFcIdT denFcId ) { |
| 164 | string MethodName = "GetFCData"; |
| 165 | bit [FNX_PCIE_XTR_REG_DEN_WIDTH-1:0] fcRegVal; |
| 166 | integer idenFcType, iFcOp, iVc, iFcId; |
| 167 | |
| 168 | idenFcType = denFcType; |
| 169 | iFcOp = PCIE_FCCTRL_get; |
| 170 | iVc = PCIE_VCID_VC0; // FNX Only Implements VC 0 |
| 171 | iFcId = denFcId; |
| 172 | fcRegVal = 0; |
| 173 | fcRegVal[FNX_PCIE_XTR_REG_DEN_FC_CTRL_FC_TYPE_SLC] = idenFcType; |
| 174 | fcRegVal[FNX_PCIE_XTR_REG_DEN_FC_CTRL_VC_SLC] = iVc; |
| 175 | fcRegVal[FNX_PCIE_XTR_REG_DEN_FC_CTRL_FC_CMD_SLC] = iFcOp; |
| 176 | fcRegVal[FNX_PCIE_XTR_REG_DEN_FC_CTRL_FC_ID_SLC] = iFcId; |
| 177 | SignalInterface.WriteDenaliReg( PCIE_REG_DEN_FC_CTRL, fcRegVal ); |
| 178 | |
| 179 | fcRegVal = SignalInterface.ReadDenaliReg( PCIE_REG_DEN_FC_CTRL ); |
| 180 | GetFCData = fcRegVal[FNX_PCIE_XTR_REG_DEN_FC_CTRL_DATA_VAL_SLC]; |
| 181 | } |
| 182 | |
| 183 | task FNXPCIEXactorFCEngine::EnableFCTimer( denaliPcieFcTypeT denFcType ) { |
| 184 | string MethodName = "EnableFCTimer"; |
| 185 | integer i, idx; |
| 186 | |
| 187 | idx = Util.denaliFCTypeToInt(denFcType); |
| 188 | if (idx < 0) { |
| 189 | for (i=0; i < FNX_PCIE_XTR_NUM_FC_TYPES; i++) { |
| 190 | FCTimerEnable[i] = 1; |
| 191 | } |
| 192 | } else { |
| 193 | FCTimerEnable[idx] = 1; |
| 194 | } |
| 195 | } |
| 196 | |
| 197 | task FNXPCIEXactorFCEngine::DisableFCTimer( denaliPcieFcTypeT denFcType ) { |
| 198 | string MethodName = "DisableFCTimer"; |
| 199 | integer i, idx; |
| 200 | |
| 201 | idx = Util.denaliFCTypeToInt(denFcType); |
| 202 | if (idx < 0) { |
| 203 | for (i=0; i < FNX_PCIE_XTR_NUM_FC_TYPES; i++) { |
| 204 | FCTimerEnable[i] = 0; |
| 205 | } |
| 206 | } else { |
| 207 | FCTimerEnable[idx] = 0; |
| 208 | } |
| 209 | } |
| 210 | |
| 211 | task FNXPCIEXactorFCEngine::SetFCTimerMax( denaliPcieFcTypeT denFcType, integer fcTimerMax ) { |
| 212 | string MethodName = "SetFCTimerMax"; |
| 213 | integer i, idx; |
| 214 | |
| 215 | idx = Util.denaliFCTypeToInt(denFcType); |
| 216 | if (idx < 0) { |
| 217 | for (i=0; i < FNX_PCIE_XTR_NUM_FC_TYPES; i++) { |
| 218 | FCTimerMax[i] = fcTimerMax; |
| 219 | } |
| 220 | } else { |
| 221 | FCTimerMax[idx] = fcTimerMax; |
| 222 | } |
| 223 | } |
| 224 | |
| 225 | task FNXPCIEXactorFCEngine::SetFCUpdateRange( denaliPcieFcTypeT denFcType, integer fcUpdateMin, integer fcUpdateMax ) { |
| 226 | string MethodName = "SetFCUpdateRange"; |
| 227 | integer i, idx; |
| 228 | |
| 229 | idx = Util.denaliFCTypeToInt(denFcType); |
| 230 | if (idx < 0) { |
| 231 | for (i=0; i < FNX_PCIE_XTR_NUM_FC_TYPES; i++) { |
| 232 | FCUpdateIncMin[i] = fcUpdateMin; |
| 233 | FCUpdateIncMax[i] = fcUpdateMax; |
| 234 | } |
| 235 | } else { |
| 236 | FCUpdateIncMin[idx] = fcUpdateMin; |
| 237 | FCUpdateIncMax[idx] = fcUpdateMax; |
| 238 | } |
| 239 | } |