Tony Lee | 84d430c | 2019-06-13 15:26:15 +0800 | [diff] [blame] | 1 | #include "nvme_manager.hpp" |
| 2 | |
Tony Lee | 6c59501 | 2019-06-19 10:54:59 +0800 | [diff] [blame^] | 3 | #include "smbus.hpp" |
| 4 | |
| 5 | #include <filesystem> |
| 6 | #include <map> |
| 7 | #include <nlohmann/json.hpp> |
Tony Lee | 84d430c | 2019-06-13 15:26:15 +0800 | [diff] [blame] | 8 | #include <phosphor-logging/elog-errors.hpp> |
| 9 | #include <phosphor-logging/log.hpp> |
Tony Lee | 6c59501 | 2019-06-19 10:54:59 +0800 | [diff] [blame^] | 10 | #include <sstream> |
| 11 | #include <string> |
Tony Lee | 84d430c | 2019-06-13 15:26:15 +0800 | [diff] [blame] | 12 | |
Tony Lee | 6c59501 | 2019-06-19 10:54:59 +0800 | [diff] [blame^] | 13 | #include "i2c.h" |
Tony Lee | 84d430c | 2019-06-13 15:26:15 +0800 | [diff] [blame] | 14 | #define MONITOR_INTERVAL_SECONDS 1 |
Tony Lee | 6c59501 | 2019-06-19 10:54:59 +0800 | [diff] [blame^] | 15 | #define NVME_SSD_SLAVE_ADDRESS 0x6a |
| 16 | #define GPIO_BASE_PATH "/sys/class/gpio/gpio" |
| 17 | #define IS_PRESENT "0" |
| 18 | #define POWERGD "1" |
| 19 | |
| 20 | static constexpr auto configFile = "/etc/nvme/nvme_config.json"; |
| 21 | static constexpr auto delay = std::chrono::milliseconds{100}; |
| 22 | using Json = nlohmann::json; |
| 23 | |
| 24 | static constexpr const uint8_t COMMAND_CODE_0 = 0; |
| 25 | static constexpr const uint8_t COMMAND_CODE_8 = 8; |
| 26 | |
| 27 | static constexpr int SERIALNUMBER_START_INDEX = 3; |
| 28 | static constexpr int SERIALNUMBER_END_INDEX = 23; |
| 29 | |
| 30 | static constexpr const int TEMPERATURE_SENSOR_FAILURE = 0x81; |
| 31 | |
| 32 | namespace fs = std::filesystem; |
| 33 | |
Tony Lee | 84d430c | 2019-06-13 15:26:15 +0800 | [diff] [blame] | 34 | namespace phosphor |
| 35 | { |
| 36 | namespace nvme |
| 37 | { |
| 38 | |
| 39 | using namespace std; |
| 40 | using namespace phosphor::logging; |
| 41 | |
Tony Lee | 6c59501 | 2019-06-19 10:54:59 +0800 | [diff] [blame^] | 42 | std::string intToHex(int input) |
| 43 | { |
| 44 | std::stringstream tmp; |
| 45 | tmp << std::hex << input; |
| 46 | |
| 47 | return tmp.str(); |
| 48 | } |
| 49 | |
| 50 | /** @brief Get NVMe info over smbus */ |
| 51 | bool getNVMeInfobyBusID(int busID, phosphor::nvme::Nvme::NVMeData& nvmeData) |
| 52 | { |
| 53 | nvmeData.present = true; |
| 54 | nvmeData.vendor = ""; |
| 55 | nvmeData.serialNumber = ""; |
| 56 | nvmeData.smartWarnings = ""; |
| 57 | nvmeData.statusFlags = ""; |
| 58 | nvmeData.driveLifeUsed = ""; |
| 59 | nvmeData.sensorValue = (int8_t)TEMPERATURE_SENSOR_FAILURE; |
| 60 | |
| 61 | phosphor::smbus::Smbus smbus; |
| 62 | |
| 63 | unsigned char rsp_data_command_0[I2C_DATA_MAX] = {0}; |
| 64 | unsigned char rsp_data_command_8[I2C_DATA_MAX] = {0}; |
| 65 | |
| 66 | uint8_t tx_data = COMMAND_CODE_0; |
| 67 | |
| 68 | auto init = smbus.smbusInit(busID); |
| 69 | |
| 70 | static std::unordered_map<int, bool> isErrorSmbus; |
| 71 | |
| 72 | if (init == -1) |
| 73 | { |
| 74 | if (isErrorSmbus[busID] != true) |
| 75 | { |
| 76 | log<level::ERR>("smbusInit fail!"); |
| 77 | isErrorSmbus[busID] = true; |
| 78 | } |
| 79 | |
| 80 | nvmeData.present = false; |
| 81 | |
| 82 | return nvmeData.present; |
| 83 | } |
| 84 | |
| 85 | auto res_int = |
| 86 | smbus.SendSmbusRWBlockCmdRAW(busID, NVME_SSD_SLAVE_ADDRESS, &tx_data, |
| 87 | sizeof(tx_data), rsp_data_command_0); |
| 88 | |
| 89 | if (res_int < 0) |
| 90 | { |
| 91 | if (isErrorSmbus[busID] != true) |
| 92 | { |
| 93 | log<level::ERR>("Send command code 0 fail!"); |
| 94 | isErrorSmbus[busID] = true; |
| 95 | } |
| 96 | |
| 97 | smbus.smbusClose(busID); |
| 98 | nvmeData.present = false; |
| 99 | return nvmeData.present; |
| 100 | } |
| 101 | |
| 102 | tx_data = COMMAND_CODE_8; |
| 103 | |
| 104 | res_int = |
| 105 | smbus.SendSmbusRWBlockCmdRAW(busID, NVME_SSD_SLAVE_ADDRESS, &tx_data, |
| 106 | sizeof(tx_data), rsp_data_command_8); |
| 107 | |
| 108 | if (res_int < 0) |
| 109 | { |
| 110 | if (isErrorSmbus[busID] != true) |
| 111 | { |
| 112 | log<level::ERR>("Send command code 8 fail!"); |
| 113 | isErrorSmbus[busID] = true; |
| 114 | } |
| 115 | |
| 116 | smbus.smbusClose(busID); |
| 117 | nvmeData.present = false; |
| 118 | return nvmeData.present; |
| 119 | } |
| 120 | |
| 121 | nvmeData.vendor = |
| 122 | intToHex(rsp_data_command_8[1]) + " " + intToHex(rsp_data_command_8[2]); |
| 123 | |
| 124 | for (int offset = SERIALNUMBER_START_INDEX; offset < SERIALNUMBER_END_INDEX; |
| 125 | offset++) |
| 126 | { |
| 127 | nvmeData.serialNumber += static_cast<char>(rsp_data_command_8[offset]); |
| 128 | } |
| 129 | |
| 130 | nvmeData.statusFlags = intToHex(rsp_data_command_0[1]); |
| 131 | nvmeData.smartWarnings = intToHex(rsp_data_command_0[2]); |
| 132 | nvmeData.driveLifeUsed = intToHex(rsp_data_command_0[4]); |
| 133 | nvmeData.sensorValue = (int8_t)rsp_data_command_0[3]; |
| 134 | |
| 135 | smbus.smbusClose(busID); |
| 136 | |
| 137 | isErrorSmbus[busID] = false; |
| 138 | |
| 139 | return nvmeData.present; |
| 140 | } |
| 141 | |
Tony Lee | 84d430c | 2019-06-13 15:26:15 +0800 | [diff] [blame] | 142 | void Nvme::run() |
| 143 | { |
Tony Lee | 84d430c | 2019-06-13 15:26:15 +0800 | [diff] [blame] | 144 | std::function<void()> callback(std::bind(&Nvme::read, this)); |
| 145 | try |
| 146 | { |
| 147 | u_int64_t interval = MONITOR_INTERVAL_SECONDS * 1000000; |
| 148 | _timer.restart(std::chrono::microseconds(interval)); |
| 149 | } |
| 150 | catch (const std::exception& e) |
| 151 | { |
| 152 | log<level::ERR>("Error in polling loop. "), |
| 153 | entry("ERROR = %s", e.what()); |
| 154 | } |
| 155 | } |
| 156 | |
Tony Lee | 6c59501 | 2019-06-19 10:54:59 +0800 | [diff] [blame^] | 157 | /** @brief Parsing NVMe config JSON file */ |
| 158 | Json parseSensorConfig() |
Tony Lee | 84d430c | 2019-06-13 15:26:15 +0800 | [diff] [blame] | 159 | { |
Tony Lee | 6c59501 | 2019-06-19 10:54:59 +0800 | [diff] [blame^] | 160 | std::ifstream jsonFile(configFile); |
| 161 | if (!jsonFile.is_open()) |
| 162 | { |
| 163 | log<level::ERR>("NVMe config JSON file not found"); |
| 164 | } |
| 165 | |
| 166 | auto data = Json::parse(jsonFile, nullptr, false); |
| 167 | if (data.is_discarded()) |
| 168 | { |
| 169 | log<level::ERR>("NVMe config readings JSON parser failure"); |
| 170 | } |
| 171 | |
| 172 | return data; |
Tony Lee | 84d430c | 2019-06-13 15:26:15 +0800 | [diff] [blame] | 173 | } |
| 174 | |
Tony Lee | 6c59501 | 2019-06-19 10:54:59 +0800 | [diff] [blame^] | 175 | /** @brief Obtain the initial configuration value of NVMe */ |
| 176 | std::vector<phosphor::nvme::Nvme::NVMeConfig> Nvme::getNvmeConfig() |
| 177 | { |
| 178 | |
| 179 | phosphor::nvme::Nvme::NVMeConfig nvmeConfig; |
| 180 | std::vector<phosphor::nvme::Nvme::NVMeConfig> nvmeConfigs; |
| 181 | int8_t criticalHigh = 0; |
| 182 | int8_t criticalLow = 0; |
| 183 | int8_t maxValue = 0; |
| 184 | int8_t minValue = 0; |
| 185 | int8_t warningHigh = 0; |
| 186 | int8_t warningLow = 0; |
| 187 | |
| 188 | try |
| 189 | { |
| 190 | auto data = parseSensorConfig(); |
| 191 | static const std::vector<Json> empty{}; |
| 192 | std::vector<Json> readings = data.value("config", empty); |
| 193 | std::vector<Json> thresholds = data.value("threshold", empty); |
| 194 | if (!thresholds.empty()) |
| 195 | { |
| 196 | for (const auto& instance : thresholds) |
| 197 | { |
| 198 | criticalHigh = instance.value("criticalHigh", 0); |
| 199 | criticalLow = instance.value("criticalLow", 0); |
| 200 | maxValue = instance.value("maxValue", 0); |
| 201 | minValue = instance.value("minValue", 0); |
| 202 | warningHigh = instance.value("warningHigh", 0); |
| 203 | warningLow = instance.value("warningLow", 0); |
| 204 | } |
| 205 | } |
| 206 | else |
| 207 | { |
| 208 | log<level::ERR>( |
| 209 | "Invalid NVMe config file, thresholds dosen't exist"); |
| 210 | } |
| 211 | |
| 212 | if (!readings.empty()) |
| 213 | { |
| 214 | for (const auto& instance : readings) |
| 215 | { |
| 216 | uint8_t index = instance.value("NVMeDriveIndex", 0); |
| 217 | uint8_t busID = instance.value("NVMeDriveBusID", 0); |
| 218 | uint8_t presentPin = instance.value("NVMeDrivePresentPin", 0); |
| 219 | uint8_t pwrGoodPin = instance.value("NVMeDrivePwrGoodPin", 0); |
| 220 | |
| 221 | nvmeConfig.index = std::to_string(index); |
| 222 | nvmeConfig.busID = busID; |
| 223 | nvmeConfig.presentPin = presentPin; |
| 224 | nvmeConfig.pwrGoodPin = pwrGoodPin; |
| 225 | nvmeConfig.criticalHigh = criticalHigh; |
| 226 | nvmeConfig.criticalLow = criticalLow; |
| 227 | nvmeConfig.warningHigh = warningHigh; |
| 228 | nvmeConfig.warningLow = warningLow; |
| 229 | nvmeConfig.maxValue = maxValue; |
| 230 | nvmeConfig.minValue = minValue; |
| 231 | nvmeConfigs.push_back(nvmeConfig); |
| 232 | } |
| 233 | } |
| 234 | else |
| 235 | { |
| 236 | log<level::ERR>("Invalid NVMe config file, config dosen't exist"); |
| 237 | } |
| 238 | } |
| 239 | catch (const Json::exception& e) |
| 240 | { |
| 241 | log<level::ERR>("Json Exception caught."), entry("MSG: %s", e.what()); |
| 242 | } |
| 243 | |
| 244 | return nvmeConfigs; |
| 245 | } |
| 246 | |
| 247 | std::string Nvme::getGPIOValueOfNvme(const std::string& fullPath) |
| 248 | { |
| 249 | std::string val; |
| 250 | std::ifstream ifs; |
| 251 | auto retries = 3; |
| 252 | |
| 253 | while (retries != 0) |
| 254 | { |
| 255 | try |
| 256 | { |
| 257 | if (!ifs.is_open()) |
| 258 | ifs.open(fullPath); |
| 259 | ifs.clear(); |
| 260 | ifs.seekg(0); |
| 261 | ifs >> val; |
| 262 | } |
| 263 | catch (const std::exception& e) |
| 264 | { |
| 265 | --retries; |
| 266 | std::this_thread::sleep_for(delay); |
| 267 | log<level::ERR>("Can not open gpio path.", |
| 268 | entry("MSG: %s", e.what())); |
| 269 | continue; |
| 270 | } |
| 271 | break; |
| 272 | } |
| 273 | |
| 274 | ifs.close(); |
| 275 | return val; |
| 276 | } |
| 277 | |
| 278 | /** @brief Monitor NVMe drives every one second */ |
Tony Lee | 84d430c | 2019-06-13 15:26:15 +0800 | [diff] [blame] | 279 | void Nvme::read() |
| 280 | { |
Tony Lee | 6c59501 | 2019-06-19 10:54:59 +0800 | [diff] [blame^] | 281 | std::string devPresentPath; |
| 282 | std::string devPwrGoodPath; |
| 283 | |
| 284 | static std::unordered_map<std::string, bool> isErrorPower; |
| 285 | |
| 286 | for (auto config : configs) |
| 287 | { |
| 288 | NVMeData nvmeData; |
| 289 | devPresentPath = |
| 290 | GPIO_BASE_PATH + std::to_string(config.presentPin) + "/value"; |
| 291 | |
| 292 | devPwrGoodPath = |
| 293 | GPIO_BASE_PATH + std::to_string(config.pwrGoodPin) + "/value"; |
| 294 | |
| 295 | auto iter = nvmes.find(config.index); |
| 296 | |
| 297 | if (getGPIOValueOfNvme(devPresentPath) == IS_PRESENT) |
| 298 | { |
| 299 | // Drive status is good, update value or create d-bus and update |
| 300 | // value. |
| 301 | if (getGPIOValueOfNvme(devPwrGoodPath) == POWERGD) |
| 302 | { |
| 303 | // get NVMe information through i2c by busID. |
| 304 | getNVMeInfobyBusID(config.busID, nvmeData); |
| 305 | // can not find. create dbus |
| 306 | if (iter == nvmes.end()) |
| 307 | { |
| 308 | log<level::INFO>("SSD plug.", |
| 309 | entry("index = %s", config.index.c_str())); |
| 310 | |
| 311 | std::string objPath = NVME_OBJ_PATH + config.index; |
| 312 | auto nvmeSSD = std::make_shared<phosphor::nvme::NvmeSSD>( |
| 313 | bus, objPath.c_str()); |
| 314 | nvmes.emplace(config.index, nvmeSSD); |
| 315 | |
| 316 | nvmeSSD->setSensorValueToDbus(nvmeData.sensorValue); |
| 317 | nvmeSSD->setSensorThreshold( |
| 318 | config.criticalHigh, config.criticalLow, |
| 319 | config.maxValue, config.minValue, config.warningHigh, |
| 320 | config.warningLow); |
| 321 | |
| 322 | nvmeSSD->checkSensorThreshold(); |
| 323 | } |
| 324 | else |
| 325 | { |
| 326 | iter->second->setSensorValueToDbus(nvmeData.sensorValue); |
| 327 | iter->second->checkSensorThreshold(); |
| 328 | } |
| 329 | isErrorPower[config.index] = false; |
| 330 | } |
| 331 | else |
| 332 | { |
| 333 | // Present pin is true but power good pin is false |
| 334 | // remove nvme d-bus path |
| 335 | nvmeData = NVMeData(); |
| 336 | nvmes.erase(config.index); |
| 337 | |
| 338 | if (isErrorPower[config.index] != true) |
| 339 | { |
| 340 | log<level::ERR>( |
| 341 | "Present pin is true but power good pin is false.", |
| 342 | entry("index = %s", config.index.c_str())); |
| 343 | log<level::ERR>("Erase SSD from map and d-bus.", |
| 344 | entry("index = %s", config.index.c_str())); |
| 345 | |
| 346 | isErrorPower[config.index] = true; |
| 347 | } |
| 348 | } |
| 349 | } |
| 350 | else |
| 351 | { |
| 352 | // Drive not present, remove nvme d-bus path |
| 353 | nvmeData = NVMeData(); |
| 354 | nvmes.erase(config.index); |
| 355 | } |
| 356 | } |
Tony Lee | 84d430c | 2019-06-13 15:26:15 +0800 | [diff] [blame] | 357 | } |
| 358 | } // namespace nvme |
| 359 | } // namespace phosphor |