Chris Cain | 5d66a0a | 2022-02-09 08:52:10 -0600 | [diff] [blame^] | 1 | #include "occ_status.hpp" |
| 2 | |
Chris Cain | b6535e8 | 2022-01-21 08:24:13 -0600 | [diff] [blame] | 3 | #include <fmt/core.h> |
| 4 | |
Andrew Geissler | 32016d1 | 2017-06-20 15:46:52 -0500 | [diff] [blame] | 5 | #include <phosphor-logging/log.hpp> |
Gunnar Mills | 94df8c9 | 2018-09-14 14:50:03 -0500 | [diff] [blame] | 6 | #include <powercap.hpp> |
George Liu | b5ca101 | 2021-09-10 12:53:11 +0800 | [diff] [blame] | 7 | |
| 8 | #include <cassert> |
Andrew Geissler | 32016d1 | 2017-06-20 15:46:52 -0500 | [diff] [blame] | 9 | |
| 10 | namespace open_power |
| 11 | { |
| 12 | namespace occ |
| 13 | { |
| 14 | namespace powercap |
| 15 | { |
| 16 | |
Gunnar Mills | 94df8c9 | 2018-09-14 14:50:03 -0500 | [diff] [blame] | 17 | constexpr auto PCAP_PATH = "/xyz/openbmc_project/control/host0/power_cap"; |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 18 | constexpr auto PCAP_INTERFACE = "xyz.openbmc_project.Control.Power.Cap"; |
| 19 | |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 20 | constexpr auto POWER_CAP_PROP = "PowerCap"; |
| 21 | constexpr auto POWER_CAP_ENABLE_PROP = "PowerCapEnable"; |
Chris Cain | 5d66a0a | 2022-02-09 08:52:10 -0600 | [diff] [blame^] | 22 | constexpr auto POWER_CAP_SOFT_MIN = "MinSoftPowerCapValue"; |
| 23 | constexpr auto POWER_CAP_HARD_MIN = "MinPowerCapValue"; |
| 24 | constexpr auto POWER_CAP_MAX = "MaxPowerCapValue"; |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 25 | |
Andrew Geissler | 32016d1 | 2017-06-20 15:46:52 -0500 | [diff] [blame] | 26 | using namespace phosphor::logging; |
George Liu | bcef3b4 | 2021-09-10 12:39:02 +0800 | [diff] [blame] | 27 | namespace fs = std::filesystem; |
Andrew Geissler | 32016d1 | 2017-06-20 15:46:52 -0500 | [diff] [blame] | 28 | |
Chris Cain | 5d66a0a | 2022-02-09 08:52:10 -0600 | [diff] [blame^] | 29 | void PowerCap::updatePcapBounds() |
| 30 | { |
| 31 | // Build the hwmon string to write the power cap bounds |
| 32 | fs::path minName = getPcapFilename(std::regex{"power\\d+_cap_min$"}); |
| 33 | fs::path softMinName = |
| 34 | getPcapFilename(std::regex{"power\\d+_cap_min_soft$"}); |
| 35 | fs::path maxName = getPcapFilename(std::regex{"power\\d+_cap_max$"}); |
| 36 | |
| 37 | // Read the power cap bounds from sysfs files |
| 38 | uint64_t cap; |
| 39 | uint32_t capSoftMin = 0, capHardMin = 0, capMax = INT_MAX; |
| 40 | std::ifstream softMinFile(softMinName, std::ios::in); |
| 41 | if (softMinFile) |
| 42 | { |
| 43 | softMinFile >> cap; |
| 44 | softMinFile.close(); |
| 45 | // Convert to Watts |
| 46 | capSoftMin = cap / 1000000; |
| 47 | } |
| 48 | else |
| 49 | { |
| 50 | log<level::ERR>( |
| 51 | fmt::format( |
| 52 | "updatePcapBounds: unable to find pcap_min_soft file: {} (errno={})", |
| 53 | pcapBasePathname.c_str(), errno) |
| 54 | .c_str()); |
| 55 | } |
| 56 | std::ifstream minFile(minName, std::ios::in); |
| 57 | if (minFile) |
| 58 | { |
| 59 | minFile >> cap; |
| 60 | minFile.close(); |
| 61 | // Convert to Watts |
| 62 | capHardMin = cap / 1000000; |
| 63 | } |
| 64 | else |
| 65 | { |
| 66 | log<level::ERR>( |
| 67 | fmt::format( |
| 68 | "updatePcapBounds: unable to find cap_min file: {} (errno={})", |
| 69 | pcapBasePathname.c_str(), errno) |
| 70 | .c_str()); |
| 71 | } |
| 72 | std::ifstream maxFile(maxName, std::ios::in); |
| 73 | if (maxFile) |
| 74 | { |
| 75 | maxFile >> cap; |
| 76 | maxFile.close(); |
| 77 | // Convert to Watts |
| 78 | capMax = cap / 1000000; |
| 79 | } |
| 80 | else |
| 81 | { |
| 82 | log<level::ERR>( |
| 83 | fmt::format( |
| 84 | "updatePcapBounds: unable to find cap_max file: {} (errno={})", |
| 85 | pcapBasePathname.c_str(), errno) |
| 86 | .c_str()); |
| 87 | } |
| 88 | |
| 89 | // Save the bounds to dbus |
| 90 | updateDbusPcap(capSoftMin, capHardMin, capMax); |
| 91 | } |
| 92 | |
Andrew Geissler | 4cea4d2 | 2017-07-10 15:13:33 -0500 | [diff] [blame] | 93 | uint32_t PowerCap::getOccInput(uint32_t pcap, bool pcapEnabled) |
| 94 | { |
| 95 | if (!pcapEnabled) |
| 96 | { |
| 97 | // Pcap disabled, return 0 to indicate disabled |
| 98 | return 0; |
| 99 | } |
| 100 | |
| 101 | // If pcap is not disabled then just return the pcap with the derating |
| 102 | // factor applied. |
Gunnar Mills | 94df8c9 | 2018-09-14 14:50:03 -0500 | [diff] [blame] | 103 | return ((static_cast<uint64_t>(pcap) * PS_DERATING_FACTOR) / 100); |
Andrew Geissler | 4cea4d2 | 2017-07-10 15:13:33 -0500 | [diff] [blame] | 104 | } |
| 105 | |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 106 | uint32_t PowerCap::getPcap() |
| 107 | { |
George Liu | f3b7514 | 2021-06-10 11:22:50 +0800 | [diff] [blame] | 108 | utils::PropertyValue pcap{}; |
| 109 | try |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 110 | { |
George Liu | f3b7514 | 2021-06-10 11:22:50 +0800 | [diff] [blame] | 111 | pcap = utils::getProperty(PCAP_PATH, PCAP_INTERFACE, POWER_CAP_PROP); |
| 112 | |
| 113 | return std::get<uint32_t>(pcap); |
| 114 | } |
Patrick Williams | 2561362 | 2021-09-02 09:29:54 -0500 | [diff] [blame] | 115 | catch (const sdbusplus::exception::exception& e) |
George Liu | f3b7514 | 2021-06-10 11:22:50 +0800 | [diff] [blame] | 116 | { |
| 117 | log<level::ERR>("Failed to get PowerCap property", |
| 118 | entry("ERROR=%s", e.what()), |
| 119 | entry("PATH=%s", PCAP_PATH)); |
| 120 | |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 121 | return 0; |
| 122 | } |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 123 | } |
| 124 | |
| 125 | bool PowerCap::getPcapEnabled() |
| 126 | { |
George Liu | f3b7514 | 2021-06-10 11:22:50 +0800 | [diff] [blame] | 127 | utils::PropertyValue pcapEnabled{}; |
| 128 | try |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 129 | { |
George Liu | f3b7514 | 2021-06-10 11:22:50 +0800 | [diff] [blame] | 130 | pcapEnabled = utils::getProperty(PCAP_PATH, PCAP_INTERFACE, |
| 131 | POWER_CAP_ENABLE_PROP); |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 132 | |
George Liu | f3b7514 | 2021-06-10 11:22:50 +0800 | [diff] [blame] | 133 | return std::get<bool>(pcapEnabled); |
| 134 | } |
Patrick Williams | 2561362 | 2021-09-02 09:29:54 -0500 | [diff] [blame] | 135 | catch (const sdbusplus::exception::exception& e) |
George Liu | f3b7514 | 2021-06-10 11:22:50 +0800 | [diff] [blame] | 136 | { |
| 137 | log<level::ERR>("Failed to get PowerCapEnable property", |
| 138 | entry("ERROR=%s", e.what()), |
| 139 | entry("PATH=%s", PCAP_PATH)); |
| 140 | |
| 141 | return false; |
| 142 | } |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 143 | } |
Andrew Geissler | 32016d1 | 2017-06-20 15:46:52 -0500 | [diff] [blame] | 144 | |
Chris Cain | 5d66a0a | 2022-02-09 08:52:10 -0600 | [diff] [blame^] | 145 | fs::path PowerCap::getPcapFilename(const std::regex& expr) |
Matt Spinler | eaaf3b2 | 2019-07-16 10:29:27 -0500 | [diff] [blame] | 146 | { |
Chris Cain | 5d66a0a | 2022-02-09 08:52:10 -0600 | [diff] [blame^] | 147 | if (pcapBasePathname.empty()) |
| 148 | { |
| 149 | static bool tracedError = false; |
| 150 | pcapBasePathname = occStatus.getHwmonPath(); |
| 151 | if (!fs::exists(pcapBasePathname) && !tracedError) |
| 152 | { |
| 153 | log<level::ERR>(fmt::format("Power Cap base filename not found: {}", |
| 154 | pcapBasePathname.c_str()) |
| 155 | .c_str()); |
| 156 | tracedError = true; |
| 157 | } |
| 158 | } |
| 159 | for (auto& file : fs::directory_iterator(pcapBasePathname)) |
Matt Spinler | eaaf3b2 | 2019-07-16 10:29:27 -0500 | [diff] [blame] | 160 | { |
| 161 | if (std::regex_search(file.path().string(), expr)) |
| 162 | { |
Chris Cain | 5d66a0a | 2022-02-09 08:52:10 -0600 | [diff] [blame^] | 163 | return file; |
Matt Spinler | eaaf3b2 | 2019-07-16 10:29:27 -0500 | [diff] [blame] | 164 | } |
| 165 | } |
Chris Cain | 5d66a0a | 2022-02-09 08:52:10 -0600 | [diff] [blame^] | 166 | // return empty path |
| 167 | return fs::path{}; |
Matt Spinler | eaaf3b2 | 2019-07-16 10:29:27 -0500 | [diff] [blame] | 168 | } |
| 169 | |
Andrew Geissler | 6ac874e | 2017-07-10 15:54:58 -0500 | [diff] [blame] | 170 | void PowerCap::writeOcc(uint32_t pcapValue) |
| 171 | { |
Chris Cain | 5d66a0a | 2022-02-09 08:52:10 -0600 | [diff] [blame^] | 172 | // Build the hwmon string to write the user power cap |
| 173 | fs::path fileName = getPcapFilename(std::regex{"power\\d+_cap_user$"}); |
| 174 | if (fileName.empty()) |
Matt Spinler | eaaf3b2 | 2019-07-16 10:29:27 -0500 | [diff] [blame] | 175 | { |
Chris Cain | b6535e8 | 2022-01-21 08:24:13 -0600 | [diff] [blame] | 176 | log<level::ERR>( |
| 177 | fmt::format("Could not find a power cap file to write to: {})", |
Chris Cain | 5d66a0a | 2022-02-09 08:52:10 -0600 | [diff] [blame^] | 178 | pcapBasePathname.c_str()) |
Chris Cain | b6535e8 | 2022-01-21 08:24:13 -0600 | [diff] [blame] | 179 | .c_str()); |
Matt Spinler | eaaf3b2 | 2019-07-16 10:29:27 -0500 | [diff] [blame] | 180 | return; |
| 181 | } |
Matt Spinler | eaaf3b2 | 2019-07-16 10:29:27 -0500 | [diff] [blame] | 182 | |
| 183 | uint64_t microWatts = pcapValue * 1000000ull; |
| 184 | |
| 185 | auto pcapString{std::to_string(microWatts)}; |
Andrew Geissler | 6ac874e | 2017-07-10 15:54:58 -0500 | [diff] [blame] | 186 | |
Andrew Geissler | 6ac874e | 2017-07-10 15:54:58 -0500 | [diff] [blame] | 187 | // Open the hwmon file and write the power cap |
Chris Cain | 5d66a0a | 2022-02-09 08:52:10 -0600 | [diff] [blame^] | 188 | std::ofstream file(fileName, std::ios::out); |
| 189 | if (file) |
| 190 | { |
| 191 | log<level::INFO>(fmt::format("Writing {}uW to {}", pcapString.c_str(), |
| 192 | fileName.c_str()) |
| 193 | .c_str()); |
| 194 | file << pcapString; |
| 195 | file.close(); |
| 196 | } |
| 197 | else |
| 198 | { |
| 199 | log<level::ERR>(fmt::format("Failed writing {}uW to {} (errno={})", |
| 200 | microWatts, fileName.c_str(), errno) |
| 201 | .c_str()); |
| 202 | } |
| 203 | |
Andrew Geissler | 6ac874e | 2017-07-10 15:54:58 -0500 | [diff] [blame] | 204 | return; |
| 205 | } |
| 206 | |
Andrew Geissler | 32016d1 | 2017-06-20 15:46:52 -0500 | [diff] [blame] | 207 | void PowerCap::pcapChanged(sdbusplus::message::message& msg) |
| 208 | { |
Andrew Geissler | 32016d1 | 2017-06-20 15:46:52 -0500 | [diff] [blame] | 209 | if (!occStatus.occActive()) |
| 210 | { |
Chris Cain | 5d66a0a | 2022-02-09 08:52:10 -0600 | [diff] [blame^] | 211 | // Nothing to do |
Andrew Geissler | 32016d1 | 2017-06-20 15:46:52 -0500 | [diff] [blame] | 212 | return; |
| 213 | } |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 214 | |
| 215 | uint32_t pcap = 0; |
| 216 | bool pcapEnabled = false; |
| 217 | |
| 218 | std::string msgSensor; |
Patrick Williams | e096270 | 2020-05-13 17:50:22 -0500 | [diff] [blame] | 219 | std::map<std::string, std::variant<uint32_t, bool>> msgData; |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 220 | msg.read(msgSensor, msgData); |
| 221 | |
Chris Cain | 5d66a0a | 2022-02-09 08:52:10 -0600 | [diff] [blame^] | 222 | bool changeFound = false; |
| 223 | for (const auto& [prop, value] : msgData) |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 224 | { |
Chris Cain | 5d66a0a | 2022-02-09 08:52:10 -0600 | [diff] [blame^] | 225 | if (prop == POWER_CAP_PROP) |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 226 | { |
Chris Cain | 5d66a0a | 2022-02-09 08:52:10 -0600 | [diff] [blame^] | 227 | pcap = std::get<uint32_t>(value); |
| 228 | pcapEnabled = getPcapEnabled(); |
| 229 | changeFound = true; |
| 230 | } |
| 231 | else if (prop == POWER_CAP_ENABLE_PROP) |
| 232 | { |
| 233 | pcapEnabled = std::get<bool>(value); |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 234 | pcap = getPcap(); |
Chris Cain | 5d66a0a | 2022-02-09 08:52:10 -0600 | [diff] [blame^] | 235 | changeFound = true; |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 236 | } |
| 237 | else |
| 238 | { |
Chris Cain | 5d66a0a | 2022-02-09 08:52:10 -0600 | [diff] [blame^] | 239 | // Ignore other properties |
| 240 | log<level::DEBUG>( |
| 241 | fmt::format( |
| 242 | "pcapChanged: Unknown power cap property changed {} to {}", |
| 243 | prop.c_str(), std::get<uint32_t>(value)) |
| 244 | .c_str()); |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 245 | } |
| 246 | } |
| 247 | |
Chris Cain | 5d66a0a | 2022-02-09 08:52:10 -0600 | [diff] [blame^] | 248 | if (changeFound) |
| 249 | { |
| 250 | log<level::INFO>( |
| 251 | fmt::format( |
| 252 | "Power Cap Property Change (cap={}W (input), enabled={})", pcap, |
| 253 | pcapEnabled ? 'y' : 'n') |
| 254 | .c_str()); |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 255 | |
Chris Cain | 5d66a0a | 2022-02-09 08:52:10 -0600 | [diff] [blame^] | 256 | // Determine desired action to write to occ |
Andrew Geissler | 6ac874e | 2017-07-10 15:54:58 -0500 | [diff] [blame] | 257 | |
Chris Cain | 5d66a0a | 2022-02-09 08:52:10 -0600 | [diff] [blame^] | 258 | auto occInput = getOccInput(pcap, pcapEnabled); |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 259 | |
Chris Cain | 5d66a0a | 2022-02-09 08:52:10 -0600 | [diff] [blame^] | 260 | // Write action to occ |
| 261 | writeOcc(occInput); |
| 262 | } |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 263 | |
| 264 | return; |
Andrew Geissler | 32016d1 | 2017-06-20 15:46:52 -0500 | [diff] [blame] | 265 | } |
| 266 | |
Chris Cain | 5d66a0a | 2022-02-09 08:52:10 -0600 | [diff] [blame^] | 267 | // Update the Power Cap bounds on DBus |
| 268 | bool PowerCap::updateDbusPcap(uint32_t softMin, uint32_t hardMin, uint32_t max) |
| 269 | { |
| 270 | bool complete = true; |
| 271 | |
| 272 | try |
| 273 | { |
| 274 | utils::setProperty(PCAP_PATH, PCAP_INTERFACE, POWER_CAP_SOFT_MIN, |
| 275 | softMin); |
| 276 | } |
| 277 | catch (const sdbusplus::exception::exception& e) |
| 278 | { |
| 279 | log<level::ERR>( |
| 280 | fmt::format( |
| 281 | "updateDbusPcap: Failed to set SOFT PCAP to {}W due to {}", |
| 282 | softMin, e.what()) |
| 283 | .c_str()); |
| 284 | complete = false; |
| 285 | } |
| 286 | |
| 287 | try |
| 288 | { |
| 289 | utils::setProperty(PCAP_PATH, PCAP_INTERFACE, POWER_CAP_HARD_MIN, |
| 290 | hardMin); |
| 291 | } |
| 292 | catch (const sdbusplus::exception::exception& e) |
| 293 | { |
| 294 | log<level::ERR>( |
| 295 | fmt::format( |
| 296 | "updateDbusPcap: Failed to set HARD PCAP to {}W due to {}", |
| 297 | hardMin, e.what()) |
| 298 | .c_str()); |
| 299 | complete = false; |
| 300 | } |
| 301 | |
| 302 | try |
| 303 | { |
| 304 | utils::setProperty(PCAP_PATH, PCAP_INTERFACE, POWER_CAP_MAX, max); |
| 305 | } |
| 306 | catch (const sdbusplus::exception::exception& e) |
| 307 | { |
| 308 | log<level::ERR>( |
| 309 | fmt::format( |
| 310 | "updateDbusPcap: Failed to set MAX PCAP to {}W due to {}", max, |
| 311 | e.what()) |
| 312 | .c_str()); |
| 313 | complete = false; |
| 314 | } |
| 315 | |
| 316 | return complete; |
| 317 | } |
Gunnar Mills | 94df8c9 | 2018-09-14 14:50:03 -0500 | [diff] [blame] | 318 | } // namespace powercap |
Andrew Geissler | 32016d1 | 2017-06-20 15:46:52 -0500 | [diff] [blame] | 319 | |
| 320 | } // namespace occ |
| 321 | |
Gunnar Mills | 94df8c9 | 2018-09-14 14:50:03 -0500 | [diff] [blame] | 322 | } // namespace open_power |