Andrew Geissler | 32016d1 | 2017-06-20 15:46:52 -0500 | [diff] [blame] | 1 | #include <powercap.hpp> |
| 2 | #include <phosphor-logging/log.hpp> |
| 3 | |
| 4 | namespace open_power |
| 5 | { |
| 6 | namespace occ |
| 7 | { |
| 8 | namespace powercap |
| 9 | { |
| 10 | |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 11 | constexpr auto PCAP_PATH = "/xyz/openbmc_project/control/host0/power_cap"; |
| 12 | constexpr auto PCAP_INTERFACE = "xyz.openbmc_project.Control.Power.Cap"; |
| 13 | |
| 14 | constexpr auto MAPPER_BUSNAME = "xyz.openbmc_project.ObjectMapper"; |
| 15 | constexpr auto MAPPER_PATH = "/xyz/openbmc_project/object_mapper"; |
| 16 | constexpr auto MAPPER_INTERFACE = "xyz.openbmc_project.ObjectMapper"; |
| 17 | |
| 18 | constexpr auto POWER_CAP_PROP = "PowerCap"; |
| 19 | constexpr auto POWER_CAP_ENABLE_PROP = "PowerCapEnable"; |
| 20 | |
Andrew Geissler | 32016d1 | 2017-06-20 15:46:52 -0500 | [diff] [blame] | 21 | using namespace phosphor::logging; |
| 22 | |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 23 | std::string PowerCap::getService(std::string path, |
| 24 | std::string interface) |
| 25 | { |
| 26 | auto mapper = bus.new_method_call(MAPPER_BUSNAME, |
| 27 | MAPPER_PATH, |
| 28 | MAPPER_INTERFACE, |
| 29 | "GetObject"); |
| 30 | |
| 31 | mapper.append(path, std::vector<std::string>({interface})); |
| 32 | auto mapperResponseMsg = bus.call(mapper); |
| 33 | |
| 34 | if (mapperResponseMsg.is_method_error()) |
| 35 | { |
| 36 | log<level::ERR>("Error in mapper call", |
| 37 | entry("PATH=%s", path.c_str()), |
| 38 | entry("INTERFACE=%s", interface.c_str())); |
| 39 | // TODO openbmc/openbmc#851 - Once available, throw returned error |
| 40 | throw std::runtime_error("Error in mapper call"); |
| 41 | } |
| 42 | |
| 43 | std::map<std::string, std::vector<std::string>> mapperResponse; |
| 44 | mapperResponseMsg.read(mapperResponse); |
| 45 | if (mapperResponse.empty()) |
| 46 | { |
| 47 | log<level::ERR>("Error reading mapper response", |
| 48 | entry("PATH=%s", path.c_str()), |
| 49 | entry("INTERFACE=%s", interface.c_str())); |
| 50 | // TODO openbmc/openbmc#1712 - Handle empty mapper resp. consistently |
| 51 | throw std::runtime_error("Error reading mapper response"); |
| 52 | } |
| 53 | |
| 54 | return mapperResponse.begin()->first; |
| 55 | } |
| 56 | |
Andrew Geissler | 4cea4d2 | 2017-07-10 15:13:33 -0500 | [diff] [blame^] | 57 | uint32_t PowerCap::getOccInput(uint32_t pcap, bool pcapEnabled) |
| 58 | { |
| 59 | if (!pcapEnabled) |
| 60 | { |
| 61 | // Pcap disabled, return 0 to indicate disabled |
| 62 | return 0; |
| 63 | } |
| 64 | |
| 65 | // If pcap is not disabled then just return the pcap with the derating |
| 66 | // factor applied. |
| 67 | return( (static_cast<uint64_t>(pcap) * PS_DERATING_FACTOR) /100); |
| 68 | } |
| 69 | |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 70 | uint32_t PowerCap::getPcap() |
| 71 | { |
| 72 | auto settingService = getService(PCAP_PATH,PCAP_INTERFACE); |
| 73 | |
| 74 | auto method = this->bus.new_method_call(settingService.c_str(), |
| 75 | PCAP_PATH, |
| 76 | "org.freedesktop.DBus.Properties", |
| 77 | "Get"); |
| 78 | |
| 79 | method.append(PCAP_INTERFACE, POWER_CAP_PROP); |
| 80 | auto reply = this->bus.call(method); |
| 81 | |
| 82 | if (reply.is_method_error()) |
| 83 | { |
| 84 | log<level::ERR>("Error in getPcap prop"); |
| 85 | return 0; |
| 86 | } |
| 87 | sdbusplus::message::variant<uint32_t> pcap; |
| 88 | reply.read(pcap); |
| 89 | |
| 90 | return pcap.get<uint32_t>(); |
| 91 | } |
| 92 | |
| 93 | bool PowerCap::getPcapEnabled() |
| 94 | { |
| 95 | auto settingService = getService(PCAP_PATH,PCAP_INTERFACE); |
| 96 | |
| 97 | auto method = this->bus.new_method_call(settingService.c_str(), |
| 98 | PCAP_PATH, |
| 99 | "org.freedesktop.DBus.Properties", |
| 100 | "Get"); |
| 101 | |
| 102 | method.append(PCAP_INTERFACE, POWER_CAP_ENABLE_PROP); |
| 103 | auto reply = this->bus.call(method); |
| 104 | |
| 105 | if (reply.is_method_error()) |
| 106 | { |
| 107 | log<level::ERR>("Error in getPcapEnabled prop"); |
| 108 | return 0; |
| 109 | } |
| 110 | sdbusplus::message::variant<bool> pcapEnabled; |
| 111 | reply.read(pcapEnabled); |
| 112 | |
| 113 | return pcapEnabled.get<bool>(); |
| 114 | } |
Andrew Geissler | 32016d1 | 2017-06-20 15:46:52 -0500 | [diff] [blame] | 115 | |
| 116 | void PowerCap::pcapChanged(sdbusplus::message::message& msg) |
| 117 | { |
Andrew Geissler | 32016d1 | 2017-06-20 15:46:52 -0500 | [diff] [blame] | 118 | if (!occStatus.occActive()) |
| 119 | { |
| 120 | // Nothing to do |
| 121 | return; |
| 122 | } |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 123 | |
| 124 | uint32_t pcap = 0; |
| 125 | bool pcapEnabled = false; |
| 126 | |
| 127 | std::string msgSensor; |
| 128 | std::map<std::string, sdbusplus::message::variant<uint32_t, bool>> msgData; |
| 129 | msg.read(msgSensor, msgData); |
| 130 | |
| 131 | // Retrieve which property changed via the msg and read the other one |
| 132 | auto valPropMap = msgData.find(POWER_CAP_PROP); |
| 133 | if (valPropMap != msgData.end()) |
| 134 | { |
| 135 | pcap = sdbusplus::message::variant_ns::get<uint32_t>( |
| 136 | valPropMap->second); |
| 137 | pcapEnabled = getPcapEnabled(); |
| 138 | } |
| 139 | else |
| 140 | { |
| 141 | valPropMap = msgData.find(POWER_CAP_ENABLE_PROP); |
| 142 | if (valPropMap != msgData.end()) |
| 143 | { |
| 144 | pcapEnabled = sdbusplus::message::variant_ns::get<bool>( |
| 145 | valPropMap->second); |
| 146 | pcap = getPcap(); |
| 147 | } |
| 148 | else |
| 149 | { |
| 150 | log<level::INFO>("Unknown power cap property changed"); |
| 151 | return; |
| 152 | } |
| 153 | } |
| 154 | |
| 155 | log<level::INFO>("Power Cap Property Change", |
| 156 | entry("PCAP=%u",pcap), |
| 157 | entry("PCAP_ENABLED=%u",pcapEnabled)); |
| 158 | |
| 159 | // Determine desired action to write to occ |
Andrew Geissler | 4cea4d2 | 2017-07-10 15:13:33 -0500 | [diff] [blame^] | 160 | auto occInput = getOccInput(pcap, pcapEnabled); |
| 161 | log<level::DEBUG>("Writing new power cap setting to OCC", |
| 162 | entry("OCC_PCAP_VAL=%u",occInput)); |
Andrew Geissler | 52cf26a | 2017-07-06 12:56:32 -0500 | [diff] [blame] | 163 | |
| 164 | // Write action to occ |
| 165 | // TODO |
| 166 | |
| 167 | return; |
Andrew Geissler | 32016d1 | 2017-06-20 15:46:52 -0500 | [diff] [blame] | 168 | } |
| 169 | |
| 170 | } // namespace open_power |
| 171 | |
| 172 | } // namespace occ |
| 173 | |
| 174 | }// namespace powercap |