1 #include "isdimm_vpd_parser.hpp" 2 3 #include <iostream> 4 #include <numeric> 5 #include <string> 6 7 namespace openpower 8 { 9 namespace vpd 10 { 11 namespace isdimm 12 { 13 namespace parser 14 { 15 static constexpr auto SPD_JEDEC_DDR4_SDRAM_CAP_MASK = 0x0F; 16 static constexpr auto SPD_JEDEC_DDR4_PRI_BUS_WIDTH_MASK = 0x07; 17 static constexpr auto SPD_JEDEC_DDR4_SDRAM_WIDTH_MASK = 0x07; 18 static constexpr auto SPD_JEDEC_DDR4_NUM_RANKS_MASK = 0x38; 19 static constexpr auto SPD_JEDEC_DDR4_DIE_COUNT_MASK = 0x70; 20 static constexpr auto SPD_JEDEC_DDR4_SINGLE_LOAD_STACK = 0x02; 21 static constexpr auto SPD_JEDEC_DDR4_SIGNAL_LOADING_MASK = 0x03; 22 23 static constexpr auto SPD_JEDEC_DDR4_SDRAMCAP_MULTIPLIER = 256; 24 static constexpr auto SPD_JEDEC_DDR4_PRI_BUS_WIDTH_MULTIPLIER = 8; 25 static constexpr auto SPD_JEDEC_DDR4_SDRAM_WIDTH_MULTIPLIER = 4; 26 static constexpr auto SPD_JEDEC_DDR4_SDRAMCAP_RESERVED = 8; 27 static constexpr auto SPD_JEDEC_DDR4_4_RESERVED_BITS = 4; 28 static constexpr auto SPD_JEDEC_DDR4_3_RESERVED_BITS = 3; 29 static constexpr auto SPD_JEDEC_DDR4_DIE_COUNT_RIGHT_SHIFT = 4; 30 31 static constexpr auto SPD_JEDEC_DDR4_MFG_ID_MSB_OFFSET = 321; 32 static constexpr auto SPD_JEDEC_DDR4_MFG_ID_LSB_OFFSET = 320; 33 static constexpr auto SPD_JEDEC_DDR4_SN_BYTE0_OFFSET = 325; 34 static constexpr auto SPD_JEDEC_DDR4_SN_BYTE1_OFFSET = 326; 35 static constexpr auto SPD_JEDEC_DDR4_SN_BYTE2_OFFSET = 327; 36 static constexpr auto SPD_JEDEC_DDR4_SN_BYTE3_OFFSET = 328; 37 static constexpr auto SPD_JEDEC_DDR4_SDRAM_DENSITY_BANK_OFFSET = 4; 38 static constexpr auto SPD_JEDEC_DDR4_SDRAM_ADDR_OFFSET = 5; 39 static constexpr auto SPD_JEDEC_DDR4_DRAM_PRI_PACKAGE_OFFSET = 6; 40 static constexpr auto SPD_JEDEC_DDR4_DRAM_MODULE_ORG_OFFSET = 12; 41 42 // DDR5 JEDEC specification constants 43 static constexpr auto SPD_JEDEC_DDR5_SUB_CHANNELS_PER_DIMM = 235; 44 static constexpr auto SPD_JEDEC_DDR5_SUB_CHANNELS_PER_DIMM_MASK = 0x60; 45 static constexpr auto SPD_JEDEC_DDR5_PRI_BUS_WIDTH_PER_CHANNEL = 235; 46 static constexpr auto SPD_JEDEC_DDR5_PRI_BUS_WIDTH_PER_CHANNEL_MASK = 0x07; 47 static constexpr auto SPD_JEDEC_DDR5_SDRAM_IO_WIDTH_SYM_ALL = 6; 48 static constexpr auto SPD_JEDEC_DDR5_SDRAM_IO_WIDTH_ASYM_EVEN = 6; 49 static constexpr auto SPD_JEDEC_DDR5_SDRAM_IO_WIDTH_ASYM_ODD = 10; 50 static constexpr auto SPD_JEDEC_DDR5_SDRAM_IO_WIDTH_MASK = 0xE0; 51 static constexpr auto SPD_JEDEC_DDR5_DIE_PER_PKG_SYM_ALL = 4; 52 static constexpr auto SPD_JEDEC_DDR5_DIE_PER_PKG_ASYM_EVEN = 4; 53 static constexpr auto SPD_JEDEC_DDR5_DIE_PER_PKG_ASYM_ODD = 8; 54 static constexpr auto SPD_JEDEC_DDR5_DIE_PER_PKG_MASK = 0xE0; 55 static constexpr auto SPD_JEDEC_DDR5_SDRAM_DENSITY_PER_DIE_SYM_ALL = 4; 56 static constexpr auto SPD_JEDEC_DDR5_SDRAM_DENSITY_PER_DIE_ASYM_EVEN = 4; 57 static constexpr auto SPD_JEDEC_DDR5_SDRAM_DENSITY_PER_DIE_ASYM_ODD = 8; 58 static constexpr auto SPD_JEDEC_DDR5_SDRAM_DENSITY_PER_DIE_MASK = 0x1F; 59 static constexpr auto SPD_JEDEC_DDR5_RANK_MIX = 234; 60 static constexpr auto SPD_JEDEC_DDR5_RANK_MIX_SYMMETRICAL_MASK = 0x40; 61 62 auto isdimmVpdParser::getDDR4DimmCapacity(Binary::const_iterator& iterator) 63 { 64 size_t tmp = 0, dimmSize = 0; 65 66 size_t sdramCap = 1, priBusWid = 1, sdramWid = 1, logicalRanksPerDimm = 1; 67 Byte dieCount = 1; 68 69 // NOTE: This calculation is Only for DDR4 70 71 // Calculate SDRAM capacity 72 tmp = iterator[constants::SPD_BYTE_4] & SPD_JEDEC_DDR4_SDRAM_CAP_MASK; 73 /* Make sure the bits are not Reserved */ 74 if (tmp >= SPD_JEDEC_DDR4_SDRAMCAP_RESERVED) 75 { 76 std::cerr 77 << "Bad data in spd byte 4. Can't calculate SDRAM capacity and so " 78 "dimm size.\n "; 79 return dimmSize; 80 } 81 82 sdramCap = (sdramCap << tmp) * SPD_JEDEC_DDR4_SDRAMCAP_MULTIPLIER; 83 84 /* Calculate Primary bus width */ 85 tmp = iterator[constants::SPD_BYTE_13] & SPD_JEDEC_DDR4_PRI_BUS_WIDTH_MASK; 86 if (tmp >= SPD_JEDEC_DDR4_4_RESERVED_BITS) 87 { 88 std::cerr 89 << "Bad data in spd byte 13. Can't calculate primary bus width " 90 "and so dimm size.\n "; 91 return dimmSize; 92 } 93 priBusWid = (priBusWid << tmp) * SPD_JEDEC_DDR4_PRI_BUS_WIDTH_MULTIPLIER; 94 95 /* Calculate SDRAM width */ 96 tmp = iterator[constants::SPD_BYTE_12] & SPD_JEDEC_DDR4_SDRAM_WIDTH_MASK; 97 if (tmp >= SPD_JEDEC_DDR4_4_RESERVED_BITS) 98 { 99 std::cerr 100 << "Bad data in vpd byte 12. Can't calculate SDRAM width and so " 101 "dimm size.\n "; 102 return dimmSize; 103 } 104 sdramWid = (sdramWid << tmp) * SPD_JEDEC_DDR4_SDRAM_WIDTH_MULTIPLIER; 105 106 tmp = iterator[constants::SPD_BYTE_6] & SPD_JEDEC_DDR4_SIGNAL_LOADING_MASK; 107 108 if (tmp == SPD_JEDEC_DDR4_SINGLE_LOAD_STACK) 109 { 110 // Fetch die count 111 tmp = iterator[constants::SPD_BYTE_6] & SPD_JEDEC_DDR4_DIE_COUNT_MASK; 112 tmp >>= SPD_JEDEC_DDR4_DIE_COUNT_RIGHT_SHIFT; 113 dieCount = tmp + 1; 114 } 115 116 /* Calculate Number of ranks */ 117 tmp = iterator[constants::SPD_BYTE_12] & SPD_JEDEC_DDR4_NUM_RANKS_MASK; 118 tmp >>= SPD_JEDEC_DDR4_3_RESERVED_BITS; 119 120 if (tmp >= SPD_JEDEC_DDR4_4_RESERVED_BITS) 121 { 122 std::cerr << "Can't calculate number of ranks. Invalid data found.\n "; 123 return dimmSize; 124 } 125 logicalRanksPerDimm = (tmp + 1) * dieCount; 126 127 dimmSize = (sdramCap / SPD_JEDEC_DDR4_PRI_BUS_WIDTH_MULTIPLIER) * 128 (priBusWid / sdramWid) * logicalRanksPerDimm; 129 130 return dimmSize; 131 } 132 133 auto isdimmVpdParser::getDDR4PartNumber(Binary::const_iterator& iterator) 134 { 135 136 char tmpPN[constants::PART_NUM_LEN + 1] = {'\0'}; 137 sprintf(tmpPN, "%02X%02X%02X%X", 138 iterator[SPD_JEDEC_DDR4_SDRAM_DENSITY_BANK_OFFSET], 139 iterator[SPD_JEDEC_DDR4_SDRAM_ADDR_OFFSET], 140 iterator[SPD_JEDEC_DDR4_DRAM_PRI_PACKAGE_OFFSET], 141 iterator[SPD_JEDEC_DDR4_DRAM_MODULE_ORG_OFFSET] & 0x0F); 142 std::string partNumber(tmpPN, sizeof(tmpPN)); 143 return partNumber; 144 } 145 146 auto isdimmVpdParser::getDDR4SerialNumber(Binary::const_iterator& iterator) 147 { 148 char tmpSN[constants::SERIAL_NUM_LEN + 1] = {'\0'}; 149 sprintf(tmpSN, "%02X%02X%02X%02X%02X%02X", 150 iterator[SPD_JEDEC_DDR4_MFG_ID_MSB_OFFSET], 151 iterator[SPD_JEDEC_DDR4_MFG_ID_LSB_OFFSET], 152 iterator[SPD_JEDEC_DDR4_SN_BYTE0_OFFSET], 153 iterator[SPD_JEDEC_DDR4_SN_BYTE1_OFFSET], 154 iterator[SPD_JEDEC_DDR4_SN_BYTE2_OFFSET], 155 iterator[SPD_JEDEC_DDR4_SN_BYTE3_OFFSET]); 156 std::string serialNumber(tmpSN, sizeof(tmpSN)); 157 return serialNumber; 158 } 159 160 auto isdimmVpdParser::getDDR4FruNumber(const std::string& partNumber) 161 { 162 // check for 128GB ISRDIMM not implemented 163 //(128GB 2RX4(8GX72) IS RDIMM 36*(16GBIT, 2H),1.2V 288PIN,1.2" ROHS) - NA 164 165 static std::unordered_map<std::string, std::string> pnFruMap = { 166 {"8421000", "78P4191"}, {"8421008", "78P4192"}, {"8529000", "78P4197"}, 167 {"8529008", "78P4198"}, {"8529928", "78P4199"}, {"8529B28", "78P4200"}, 168 {"8631008", "78P6815"}, {"8631928", "78P6925"}}; 169 170 std::string fruNumber; 171 auto itr = pnFruMap.find(partNumber); 172 if (itr != pnFruMap.end()) 173 { 174 fruNumber = itr->second; 175 } 176 else 177 { 178 fruNumber = "FFFFFFF"; 179 } 180 return fruNumber; 181 } 182 183 auto isdimmVpdParser::getDDR4CCIN(const std::string& partNumber) 184 { 185 static std::unordered_map<std::string, std::string> pnCCINMap = { 186 {"8421000", "324D"}, {"8421008", "324E"}, {"8529000", "324E"}, 187 {"8529008", "324F"}, {"8529928", "325A"}, {"8529B28", "324C"}, 188 {"8631008", "32BB"}, {"8631928", "32BC"}}; 189 190 std::string ccin; 191 auto itr = pnCCINMap.find(partNumber); 192 if (itr != pnCCINMap.end()) 193 { 194 ccin = itr->second; 195 } 196 else 197 { 198 ccin = "XXXX"; 199 } 200 return ccin; 201 } 202 203 auto isdimmVpdParser::getDDR5DimmCapacity(Binary::const_iterator& iterator) 204 { 205 // dummy implementation to be updated when required 206 size_t dimmSize = 0; 207 (void)iterator; 208 return dimmSize; 209 } 210 211 auto isdimmVpdParser::getDDR5PartNumber(Binary::const_iterator& iterator) 212 { 213 // dummy implementation to be updated when required 214 std::string partNumber; 215 (void)iterator; 216 partNumber = "0123456"; 217 return partNumber; 218 } 219 220 auto isdimmVpdParser::getDDR5SerialNumber(Binary::const_iterator& iterator) 221 { 222 // dummy implementation to be updated when required 223 std::string serialNumber; 224 (void)iterator; 225 serialNumber = "444444444444"; 226 return serialNumber; 227 } 228 229 auto isdimmVpdParser::getDDR5FruNumber(const std::string& partNumber) 230 { 231 // dummy implementation to be updated when required 232 static std::unordered_map<std::string, std::string> pnFruMap = { 233 {"1234567", "XXXXXXX"}}; 234 235 std::string fruNumber; 236 auto itr = pnFruMap.find(partNumber); 237 if (itr != pnFruMap.end()) 238 { 239 fruNumber = itr->second; 240 } 241 else 242 { 243 fruNumber = "FFFFFFF"; 244 } 245 return fruNumber; 246 } 247 248 auto isdimmVpdParser::getDDR5CCIN(const std::string& partNumber) 249 { 250 // dummy implementation to be updated when required 251 static std::unordered_map<std::string, std::string> pnCCINMap = { 252 {"1234567", "XXXX"}}; 253 254 std::string ccin; 255 auto itr = pnCCINMap.find(partNumber); 256 if (itr != pnCCINMap.end()) 257 { 258 ccin = itr->second; 259 } 260 else 261 { 262 ccin = "XXXX"; 263 } 264 return ccin; 265 } 266 267 kwdVpdMap isdimmVpdParser::readKeywords(Binary::const_iterator& iterator) 268 { 269 inventory::KeywordVpdMap keywordValueMap{}; 270 if ((iterator[constants::SPD_BYTE_2] & constants::SPD_BYTE_MASK) == 271 constants::SPD_DRAM_TYPE_DDR5) 272 { 273 auto dimmSize = getDDR5DimmCapacity(iterator); 274 if (!dimmSize) 275 { 276 std::cerr << "Error: Calculated dimm size is 0."; 277 } 278 else if (dimmSize < constants::CONVERT_MB_TO_KB) 279 { 280 keywordValueMap.emplace("MemorySizeInMB", dimmSize); 281 } 282 else 283 { 284 size_t dimmCapacityInGB = dimmSize / constants::CONVERT_MB_TO_KB; 285 keywordValueMap.emplace("MemorySizeInGB", dimmCapacityInGB); 286 } 287 auto partNumber = getDDR5PartNumber(iterator); 288 keywordValueMap.emplace("PN", move(partNumber)); 289 auto fruNumber = getDDR5FruNumber(partNumber); 290 keywordValueMap.emplace("FN", move(fruNumber)); 291 auto serialNumber = getDDR5SerialNumber(iterator); 292 keywordValueMap.emplace("SN", move(serialNumber)); 293 auto ccin = getDDR5CCIN(partNumber); 294 keywordValueMap.emplace("CC", move(ccin)); 295 } 296 else if ((iterator[constants::SPD_BYTE_2] & constants::SPD_BYTE_MASK) == 297 constants::SPD_DRAM_TYPE_DDR4) 298 { 299 auto dimmSize = getDDR4DimmCapacity(iterator); 300 if (!dimmSize) 301 { 302 std::cerr << "Error: Calculated dimm size is 0."; 303 } 304 else if (dimmSize < constants::CONVERT_MB_TO_KB) 305 { 306 keywordValueMap.emplace("MemorySizeInMB", dimmSize); 307 } 308 else 309 { 310 size_t dimmCapacityInGB = dimmSize / constants::CONVERT_MB_TO_KB; 311 keywordValueMap.emplace("MemorySizeInGB", dimmCapacityInGB); 312 } 313 size_t dimmCapacityInGB = dimmSize / constants::CONVERT_MB_TO_KB; 314 keywordValueMap.emplace("MemorySizeInGB", dimmCapacityInGB); 315 auto partNumber = getDDR4PartNumber(iterator); 316 keywordValueMap.emplace("PN", move(partNumber)); 317 auto fruNumber = getDDR4FruNumber(partNumber); 318 keywordValueMap.emplace("FN", move(fruNumber)); 319 auto serialNumber = getDDR4SerialNumber(iterator); 320 keywordValueMap.emplace("SN", move(serialNumber)); 321 auto ccin = getDDR4CCIN(partNumber); 322 keywordValueMap.emplace("CC", move(ccin)); 323 } 324 return keywordValueMap; 325 } 326 327 std::variant<kwdVpdMap, Store> isdimmVpdParser::parse() 328 { 329 // Read the data and return the map 330 auto iterator = memVpd.cbegin(); 331 auto vpdDataMap = readKeywords(iterator); 332 333 return vpdDataMap; 334 } 335 336 } // namespace parser 337 } // namespace isdimm 338 } // namespace vpd 339 } // namespace openpower 340