Chris Cain | b6535e8 | 2022-01-21 08:24:13 -0600 | [diff] [blame^] | 1 | #include <fmt/core.h> |
| 2 | |
Andrew Geissler | 32016d1 | 2017-06-20 15:46:52 -0500 | [diff] [blame] | 3 | #include <phosphor-logging/log.hpp> |
Gunnar Mills | 94df8c9 | 2018-09-14 14:50:03 -0500 | [diff] [blame] | 4 | #include <powercap.hpp> |
George Liu | b5ca101 | 2021-09-10 12:53:11 +0800 | [diff] [blame] | 5 | |
| 6 | #include <cassert> |
Matt Spinler | eaaf3b2 | 2019-07-16 10:29:27 -0500 | [diff] [blame] | 7 | #include <regex> |
Andrew Geissler | 32016d1 | 2017-06-20 15:46:52 -0500 | [diff] [blame] | 8 | |
| 9 | namespace open_power |
| 10 | { |
| 11 | namespace occ |
| 12 | { |
| 13 | namespace powercap |
| 14 | { |
| 15 | |
Gunnar Mills | 94df8c9 | 2018-09-14 14:50:03 -0500 | [diff] [blame] | 16 | constexpr auto PCAP_PATH = "/xyz/openbmc_project/control/host0/power_cap"; |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 17 | constexpr auto PCAP_INTERFACE = "xyz.openbmc_project.Control.Power.Cap"; |
| 18 | |
| 19 | constexpr auto MAPPER_BUSNAME = "xyz.openbmc_project.ObjectMapper"; |
| 20 | constexpr auto MAPPER_PATH = "/xyz/openbmc_project/object_mapper"; |
| 21 | constexpr auto MAPPER_INTERFACE = "xyz.openbmc_project.ObjectMapper"; |
| 22 | |
| 23 | constexpr auto POWER_CAP_PROP = "PowerCap"; |
| 24 | constexpr auto POWER_CAP_ENABLE_PROP = "PowerCapEnable"; |
| 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 | |
Andrew Geissler | 4cea4d2 | 2017-07-10 15:13:33 -0500 | [diff] [blame] | 29 | uint32_t PowerCap::getOccInput(uint32_t pcap, bool pcapEnabled) |
| 30 | { |
| 31 | if (!pcapEnabled) |
| 32 | { |
| 33 | // Pcap disabled, return 0 to indicate disabled |
| 34 | return 0; |
| 35 | } |
| 36 | |
| 37 | // If pcap is not disabled then just return the pcap with the derating |
| 38 | // factor applied. |
Gunnar Mills | 94df8c9 | 2018-09-14 14:50:03 -0500 | [diff] [blame] | 39 | return ((static_cast<uint64_t>(pcap) * PS_DERATING_FACTOR) / 100); |
Andrew Geissler | 4cea4d2 | 2017-07-10 15:13:33 -0500 | [diff] [blame] | 40 | } |
| 41 | |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 42 | uint32_t PowerCap::getPcap() |
| 43 | { |
George Liu | f3b7514 | 2021-06-10 11:22:50 +0800 | [diff] [blame] | 44 | utils::PropertyValue pcap{}; |
| 45 | try |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 46 | { |
George Liu | f3b7514 | 2021-06-10 11:22:50 +0800 | [diff] [blame] | 47 | pcap = utils::getProperty(PCAP_PATH, PCAP_INTERFACE, POWER_CAP_PROP); |
| 48 | |
| 49 | return std::get<uint32_t>(pcap); |
| 50 | } |
Patrick Williams | 2561362 | 2021-09-02 09:29:54 -0500 | [diff] [blame] | 51 | catch (const sdbusplus::exception::exception& e) |
George Liu | f3b7514 | 2021-06-10 11:22:50 +0800 | [diff] [blame] | 52 | { |
| 53 | log<level::ERR>("Failed to get PowerCap property", |
| 54 | entry("ERROR=%s", e.what()), |
| 55 | entry("PATH=%s", PCAP_PATH)); |
| 56 | |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 57 | return 0; |
| 58 | } |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 59 | } |
| 60 | |
| 61 | bool PowerCap::getPcapEnabled() |
| 62 | { |
George Liu | f3b7514 | 2021-06-10 11:22:50 +0800 | [diff] [blame] | 63 | utils::PropertyValue pcapEnabled{}; |
| 64 | try |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 65 | { |
George Liu | f3b7514 | 2021-06-10 11:22:50 +0800 | [diff] [blame] | 66 | pcapEnabled = utils::getProperty(PCAP_PATH, PCAP_INTERFACE, |
| 67 | POWER_CAP_ENABLE_PROP); |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 68 | |
George Liu | f3b7514 | 2021-06-10 11:22:50 +0800 | [diff] [blame] | 69 | return std::get<bool>(pcapEnabled); |
| 70 | } |
Patrick Williams | 2561362 | 2021-09-02 09:29:54 -0500 | [diff] [blame] | 71 | catch (const sdbusplus::exception::exception& e) |
George Liu | f3b7514 | 2021-06-10 11:22:50 +0800 | [diff] [blame] | 72 | { |
| 73 | log<level::ERR>("Failed to get PowerCapEnable property", |
| 74 | entry("ERROR=%s", e.what()), |
| 75 | entry("PATH=%s", PCAP_PATH)); |
| 76 | |
| 77 | return false; |
| 78 | } |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 79 | } |
Andrew Geissler | 32016d1 | 2017-06-20 15:46:52 -0500 | [diff] [blame] | 80 | |
Matt Spinler | eaaf3b2 | 2019-07-16 10:29:27 -0500 | [diff] [blame] | 81 | std::string PowerCap::getPcapFilename(const fs::path& path) |
| 82 | { |
| 83 | std::regex expr{"power\\d+_cap_user$"}; |
| 84 | for (auto& file : fs::directory_iterator(path)) |
| 85 | { |
| 86 | if (std::regex_search(file.path().string(), expr)) |
| 87 | { |
| 88 | return file.path().filename(); |
| 89 | } |
| 90 | } |
| 91 | return std::string{}; |
| 92 | } |
| 93 | |
Andrew Geissler | 6ac874e | 2017-07-10 15:54:58 -0500 | [diff] [blame] | 94 | void PowerCap::writeOcc(uint32_t pcapValue) |
| 95 | { |
| 96 | // Create path out to master occ hwmon entry |
| 97 | std::unique_ptr<fs::path> fileName = |
Gunnar Mills | 94df8c9 | 2018-09-14 14:50:03 -0500 | [diff] [blame] | 98 | std::make_unique<fs::path>(OCC_HWMON_PATH); |
Lei YU | 41470e5 | 2017-11-30 16:03:50 +0800 | [diff] [blame] | 99 | *fileName /= occMasterName; |
Chris Cain | b6535e8 | 2022-01-21 08:24:13 -0600 | [diff] [blame^] | 100 | *fileName /= "hwmon"; |
Andrew Geissler | 6ac874e | 2017-07-10 15:54:58 -0500 | [diff] [blame] | 101 | |
| 102 | // Need to get the hwmonXX directory name, there better only be 1 dir |
| 103 | assert(std::distance(fs::directory_iterator(*fileName), |
| 104 | fs::directory_iterator{}) == 1); |
| 105 | // Now set our path to this full path, including this hwmonXX directory |
| 106 | fileName = std::make_unique<fs::path>(*fs::directory_iterator(*fileName)); |
| 107 | // Append on the hwmon string where we write the user power cap |
Andrew Geissler | 6ac874e | 2017-07-10 15:54:58 -0500 | [diff] [blame] | 108 | |
Matt Spinler | eaaf3b2 | 2019-07-16 10:29:27 -0500 | [diff] [blame] | 109 | auto baseName = getPcapFilename(*fileName); |
| 110 | if (baseName.empty()) |
| 111 | { |
Chris Cain | b6535e8 | 2022-01-21 08:24:13 -0600 | [diff] [blame^] | 112 | log<level::ERR>( |
| 113 | fmt::format("Could not find a power cap file to write to: {})", |
| 114 | fileName->c_str()) |
| 115 | .c_str()); |
Matt Spinler | eaaf3b2 | 2019-07-16 10:29:27 -0500 | [diff] [blame] | 116 | return; |
| 117 | } |
| 118 | *fileName /= baseName; |
| 119 | |
| 120 | uint64_t microWatts = pcapValue * 1000000ull; |
| 121 | |
| 122 | auto pcapString{std::to_string(microWatts)}; |
Andrew Geissler | 6ac874e | 2017-07-10 15:54:58 -0500 | [diff] [blame] | 123 | |
| 124 | log<level::INFO>("Writing pcap value to hwmon", |
Gunnar Mills | 94df8c9 | 2018-09-14 14:50:03 -0500 | [diff] [blame] | 125 | entry("PCAP_PATH=%s", fileName->c_str()), |
| 126 | entry("PCAP_VALUE=%s", pcapString.c_str())); |
Andrew Geissler | 6ac874e | 2017-07-10 15:54:58 -0500 | [diff] [blame] | 127 | // Open the hwmon file and write the power cap |
| 128 | std::ofstream file(*fileName, std::ios::out); |
| 129 | file << pcapString; |
| 130 | file.close(); |
| 131 | return; |
| 132 | } |
| 133 | |
Andrew Geissler | 32016d1 | 2017-06-20 15:46:52 -0500 | [diff] [blame] | 134 | void PowerCap::pcapChanged(sdbusplus::message::message& msg) |
| 135 | { |
Andrew Geissler | 32016d1 | 2017-06-20 15:46:52 -0500 | [diff] [blame] | 136 | if (!occStatus.occActive()) |
| 137 | { |
| 138 | // Nothing to do |
| 139 | return; |
| 140 | } |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 141 | |
| 142 | uint32_t pcap = 0; |
| 143 | bool pcapEnabled = false; |
| 144 | |
| 145 | std::string msgSensor; |
Patrick Williams | e096270 | 2020-05-13 17:50:22 -0500 | [diff] [blame] | 146 | std::map<std::string, std::variant<uint32_t, bool>> msgData; |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 147 | msg.read(msgSensor, msgData); |
| 148 | |
| 149 | // Retrieve which property changed via the msg and read the other one |
| 150 | auto valPropMap = msgData.find(POWER_CAP_PROP); |
| 151 | if (valPropMap != msgData.end()) |
| 152 | { |
Patrick Williams | 305ff8b | 2020-05-13 11:17:39 -0500 | [diff] [blame] | 153 | pcap = std::get<uint32_t>(valPropMap->second); |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 154 | pcapEnabled = getPcapEnabled(); |
| 155 | } |
| 156 | else |
| 157 | { |
| 158 | valPropMap = msgData.find(POWER_CAP_ENABLE_PROP); |
| 159 | if (valPropMap != msgData.end()) |
| 160 | { |
Patrick Williams | 305ff8b | 2020-05-13 11:17:39 -0500 | [diff] [blame] | 161 | pcapEnabled = std::get<bool>(valPropMap->second); |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 162 | pcap = getPcap(); |
| 163 | } |
| 164 | else |
| 165 | { |
| 166 | log<level::INFO>("Unknown power cap property changed"); |
| 167 | return; |
| 168 | } |
| 169 | } |
| 170 | |
Chris Cain | b6535e8 | 2022-01-21 08:24:13 -0600 | [diff] [blame^] | 171 | log<level::INFO>( |
| 172 | fmt::format("Power Cap Property Change (cap={}W (input), enabled={})", |
| 173 | pcap, pcapEnabled ? 'y' : 'n') |
| 174 | .c_str()); |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 175 | |
| 176 | // Determine desired action to write to occ |
Andrew Geissler | 6ac874e | 2017-07-10 15:54:58 -0500 | [diff] [blame] | 177 | |
Andrew Geissler | 4cea4d2 | 2017-07-10 15:13:33 -0500 | [diff] [blame] | 178 | auto occInput = getOccInput(pcap, pcapEnabled); |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 179 | |
| 180 | // Write action to occ |
Andrew Geissler | 6ac874e | 2017-07-10 15:54:58 -0500 | [diff] [blame] | 181 | writeOcc(occInput); |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 182 | |
| 183 | return; |
Andrew Geissler | 32016d1 | 2017-06-20 15:46:52 -0500 | [diff] [blame] | 184 | } |
| 185 | |
Gunnar Mills | 94df8c9 | 2018-09-14 14:50:03 -0500 | [diff] [blame] | 186 | } // namespace powercap |
Andrew Geissler | 32016d1 | 2017-06-20 15:46:52 -0500 | [diff] [blame] | 187 | |
| 188 | } // namespace occ |
| 189 | |
Gunnar Mills | 94df8c9 | 2018-09-14 14:50:03 -0500 | [diff] [blame] | 190 | } // namespace open_power |