14f0d1de6SSteve Foreman // Copyright 2022 Google LLC 2a2056e9cSWilly Tu // 3a2056e9cSWilly Tu // Licensed under the Apache License, Version 2.0 (the "License"); 4a2056e9cSWilly Tu // you may not use this file except in compliance with the License. 5a2056e9cSWilly Tu // You may obtain a copy of the License at 6a2056e9cSWilly Tu // 7a2056e9cSWilly Tu // http://www.apache.org/licenses/LICENSE-2.0 8a2056e9cSWilly Tu // 9a2056e9cSWilly Tu // Unless required by applicable law or agreed to in writing, software 10a2056e9cSWilly Tu // distributed under the License is distributed on an "AS IS" BASIS, 11a2056e9cSWilly Tu // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12a2056e9cSWilly Tu // See the License for the specific language governing permissions and 13a2056e9cSWilly Tu // limitations under the License. 14f085d91dSPatrick Venture #include "handler.hpp" 15f085d91dSPatrick Venture 16*8ec4106bSNikhil Namjoshi #include "bmc_mode_enum.hpp" 17d2037c6aSPatrick Venture #include "errors.hpp" 18c87de558SPatrick Venture #include "handler_impl.hpp" 19ab650004SPatrick Venture #include "util.hpp" 20d2037c6aSPatrick Venture 213b1b427cSWilly Tu #include <fcntl.h> 22d2037c6aSPatrick Venture #include <ipmid/api.h> 233b1b427cSWilly Tu #include <mtd/mtd-abi.h> 243b1b427cSWilly Tu #include <mtd/mtd-user.h> 253b1b427cSWilly Tu #include <sys/ioctl.h> 263b1b427cSWilly Tu #include <unistd.h> 27d2037c6aSPatrick Venture 28bb90d4fdSPatrick Venture #include <cinttypes> 29d2037c6aSPatrick Venture #include <cstdio> 30d2037c6aSPatrick Venture #include <filesystem> 31d2037c6aSPatrick Venture #include <fstream> 3207f85150SPatrick Venture #include <map> 3307f85150SPatrick Venture #include <nlohmann/json.hpp> 3407f85150SPatrick Venture #include <phosphor-logging/elog-errors.hpp> 35aa374120SPatrick Venture #include <phosphor-logging/log.hpp> 36aa374120SPatrick Venture #include <sdbusplus/bus.hpp> 37d2037c6aSPatrick Venture #include <sstream> 38d2037c6aSPatrick Venture #include <string> 3929f35bceSWilliam A. Kennington III #include <string_view> 40d2037c6aSPatrick Venture #include <tuple> 414f0d1de6SSteve Foreman #include <variant> 4207f85150SPatrick Venture #include <xyz/openbmc_project/Common/error.hpp> 43d2037c6aSPatrick Venture 445e70dc8cSNikhil Namjoshi #include "bm_config.h" 455e70dc8cSNikhil Namjoshi 46f085d91dSPatrick Venture #ifndef NCSI_IF_NAME 47f085d91dSPatrick Venture #define NCSI_IF_NAME eth0 48f085d91dSPatrick Venture #endif 49f085d91dSPatrick Venture 50f085d91dSPatrick Venture // To deal with receiving a string without quotes. 51f085d91dSPatrick Venture #define QUOTE(name) #name 52f085d91dSPatrick Venture #define STR(macro) QUOTE(macro) 53f085d91dSPatrick Venture #define NCSI_IF_NAME_STR STR(NCSI_IF_NAME) 54f085d91dSPatrick Venture 558d3d46a2SWilliam A. Kennington III namespace ipmi 568d3d46a2SWilliam A. Kennington III { 578d3d46a2SWilliam A. Kennington III std::uint8_t getChannelByName(const std::string& chName); 588d3d46a2SWilliam A. Kennington III } 598d3d46a2SWilliam A. Kennington III 60f085d91dSPatrick Venture namespace google 61f085d91dSPatrick Venture { 62f085d91dSPatrick Venture namespace ipmi 63f085d91dSPatrick Venture { 64d2037c6aSPatrick Venture namespace fs = std::filesystem; 6507f85150SPatrick Venture using Json = nlohmann::json; 6607f85150SPatrick Venture using namespace phosphor::logging; 6707f85150SPatrick Venture using InternalFailure = 6807f85150SPatrick Venture sdbusplus::xyz::openbmc_project::Common::Error::InternalFailure; 69f085d91dSPatrick Venture 705e70dc8cSNikhil Namjoshi uint8_t isBmcInBareMetalMode() 715e70dc8cSNikhil Namjoshi { 725e70dc8cSNikhil Namjoshi #if BARE_METAL 735e70dc8cSNikhil Namjoshi return static_cast<uint8_t>(BmcMode::BM_MODE); 745e70dc8cSNikhil Namjoshi #else 755e70dc8cSNikhil Namjoshi return static_cast<uint8_t>(BmcMode::NON_BM_MODE); 765e70dc8cSNikhil Namjoshi #endif 775e70dc8cSNikhil Namjoshi } 785e70dc8cSNikhil Namjoshi 795e70dc8cSNikhil Namjoshi uint8_t Handler::getBmcMode() 805e70dc8cSNikhil Namjoshi { 815e70dc8cSNikhil Namjoshi // BM_CLEANING_MODE is not implemented yet 825e70dc8cSNikhil Namjoshi return isBmcInBareMetalMode(); 835e70dc8cSNikhil Namjoshi } 845e70dc8cSNikhil Namjoshi 85b69209b4SWilliam A. Kennington III std::tuple<std::uint8_t, std::string> 86b69209b4SWilliam A. Kennington III Handler::getEthDetails(std::string intf) const 87f085d91dSPatrick Venture { 88b69209b4SWilliam A. Kennington III if (intf.empty()) 89b69209b4SWilliam A. Kennington III { 90b69209b4SWilliam A. Kennington III intf = NCSI_IF_NAME_STR; 91b69209b4SWilliam A. Kennington III } 92b69209b4SWilliam A. Kennington III return std::make_tuple(::ipmi::getChannelByName(intf), std::move(intf)); 93f085d91dSPatrick Venture } 94f085d91dSPatrick Venture 95d2037c6aSPatrick Venture std::int64_t Handler::getRxPackets(const std::string& name) const 96d2037c6aSPatrick Venture { 97d2037c6aSPatrick Venture std::ostringstream opath; 98d2037c6aSPatrick Venture opath << "/sys/class/net/" << name << "/statistics/rx_packets"; 99d2037c6aSPatrick Venture std::string path = opath.str(); 100d2037c6aSPatrick Venture 101d2037c6aSPatrick Venture // Minor sanity & security check (of course, I'm less certain if unicode 102d2037c6aSPatrick Venture // comes into play here. 103d2037c6aSPatrick Venture // 104d2037c6aSPatrick Venture // Basically you can't easily inject ../ or /../ into the path below. 105d2037c6aSPatrick Venture if (name.find("/") != std::string::npos) 106d2037c6aSPatrick Venture { 107d2037c6aSPatrick Venture std::fprintf(stderr, "Invalid or illegal name: '%s'\n", name.c_str()); 108e5a06675SMichael Shen throw IpmiException(::ipmi::ccInvalidFieldRequest); 109d2037c6aSPatrick Venture } 110d2037c6aSPatrick Venture 111d2037c6aSPatrick Venture std::error_code ec; 112d2037c6aSPatrick Venture if (!fs::exists(path, ec)) 113d2037c6aSPatrick Venture { 114d2037c6aSPatrick Venture std::fprintf(stderr, "Path: '%s' doesn't exist.\n", path.c_str()); 115e5a06675SMichael Shen throw IpmiException(::ipmi::ccInvalidFieldRequest); 116d2037c6aSPatrick Venture } 117d2037c6aSPatrick Venture // We're uninterested in the state of ec. 118d2037c6aSPatrick Venture 119d2037c6aSPatrick Venture int64_t count = 0; 120d2037c6aSPatrick Venture std::ifstream ifs; 121d2037c6aSPatrick Venture ifs.exceptions(std::ifstream::failbit); 122d2037c6aSPatrick Venture try 123d2037c6aSPatrick Venture { 124d2037c6aSPatrick Venture ifs.open(path); 125d2037c6aSPatrick Venture ifs >> count; 126d2037c6aSPatrick Venture } 127d2037c6aSPatrick Venture catch (std::ios_base::failure& fail) 128d2037c6aSPatrick Venture { 129e5a06675SMichael Shen throw IpmiException(::ipmi::ccUnspecifiedError); 130d2037c6aSPatrick Venture } 131d2037c6aSPatrick Venture 132d2037c6aSPatrick Venture return count; 133d2037c6aSPatrick Venture } 134d2037c6aSPatrick Venture 135bb90d4fdSPatrick Venture VersionTuple Handler::getCpldVersion(unsigned int id) const 136bb90d4fdSPatrick Venture { 137bb90d4fdSPatrick Venture std::ostringstream opath; 138bb90d4fdSPatrick Venture opath << "/run/cpld" << id << ".version"; 139bb90d4fdSPatrick Venture // Check for file 140bb90d4fdSPatrick Venture 141bb90d4fdSPatrick Venture std::error_code ec; 142bb90d4fdSPatrick Venture if (!fs::exists(opath.str(), ec)) 143bb90d4fdSPatrick Venture { 144bb90d4fdSPatrick Venture std::fprintf(stderr, "Path: '%s' doesn't exist.\n", 145bb90d4fdSPatrick Venture opath.str().c_str()); 146e5a06675SMichael Shen throw IpmiException(::ipmi::ccInvalidFieldRequest); 147bb90d4fdSPatrick Venture } 148bb90d4fdSPatrick Venture // We're uninterested in the state of ec. 149bb90d4fdSPatrick Venture 150bb90d4fdSPatrick Venture // If file exists, read. 151bb90d4fdSPatrick Venture std::ifstream ifs; 152bb90d4fdSPatrick Venture ifs.exceptions(std::ifstream::failbit); 153bb90d4fdSPatrick Venture std::string value; 154bb90d4fdSPatrick Venture try 155bb90d4fdSPatrick Venture { 156bb90d4fdSPatrick Venture ifs.open(opath.str()); 157bb90d4fdSPatrick Venture ifs >> value; 158bb90d4fdSPatrick Venture } 159bb90d4fdSPatrick Venture catch (std::ios_base::failure& fail) 160bb90d4fdSPatrick Venture { 161e5a06675SMichael Shen throw IpmiException(::ipmi::ccUnspecifiedError); 162bb90d4fdSPatrick Venture } 163bb90d4fdSPatrick Venture 164bb90d4fdSPatrick Venture // If value parses as expected, return version. 165bb90d4fdSPatrick Venture VersionTuple version = std::make_tuple(0, 0, 0, 0); 166bb90d4fdSPatrick Venture 167bb90d4fdSPatrick Venture int num_fields = 168bb90d4fdSPatrick Venture std::sscanf(value.c_str(), "%" SCNu8 ".%" SCNu8 ".%" SCNu8 ".%" SCNu8, 169bb90d4fdSPatrick Venture &std::get<0>(version), &std::get<1>(version), 170bb90d4fdSPatrick Venture &std::get<2>(version), &std::get<3>(version)); 171bb90d4fdSPatrick Venture if (num_fields == 0) 172bb90d4fdSPatrick Venture { 173bb90d4fdSPatrick Venture std::fprintf(stderr, "Invalid version.\n"); 174e5a06675SMichael Shen throw IpmiException(::ipmi::ccUnspecifiedError); 175bb90d4fdSPatrick Venture } 176bb90d4fdSPatrick Venture 177bb90d4fdSPatrick Venture return version; 178bb90d4fdSPatrick Venture } 179bb90d4fdSPatrick Venture 180aa374120SPatrick Venture static constexpr auto TIME_DELAY_FILENAME = "/run/psu_timedelay"; 181aa374120SPatrick Venture static constexpr auto SYSTEMD_SERVICE = "org.freedesktop.systemd1"; 182aa374120SPatrick Venture static constexpr auto SYSTEMD_ROOT = "/org/freedesktop/systemd1"; 183aa374120SPatrick Venture static constexpr auto SYSTEMD_INTERFACE = "org.freedesktop.systemd1.Manager"; 184aa374120SPatrick Venture static constexpr auto PSU_HARDRESET_TARGET = "gbmc-psu-hardreset.target"; 185aa374120SPatrick Venture 186aa374120SPatrick Venture void Handler::psuResetDelay(std::uint32_t delay) const 187aa374120SPatrick Venture { 188aa374120SPatrick Venture std::ofstream ofs; 189aa374120SPatrick Venture ofs.open(TIME_DELAY_FILENAME, std::ofstream::out); 190aa374120SPatrick Venture if (!ofs.good()) 191aa374120SPatrick Venture { 192aa374120SPatrick Venture std::fprintf(stderr, "Unable to open file for output.\n"); 193e5a06675SMichael Shen throw IpmiException(::ipmi::ccUnspecifiedError); 194aa374120SPatrick Venture } 195aa374120SPatrick Venture 196aa374120SPatrick Venture ofs << "PSU_HARDRESET_DELAY=" << delay << std::endl; 197aa374120SPatrick Venture if (ofs.fail()) 198aa374120SPatrick Venture { 199aa374120SPatrick Venture std::fprintf(stderr, "Write failed\n"); 200aa374120SPatrick Venture ofs.close(); 201e5a06675SMichael Shen throw IpmiException(::ipmi::ccUnspecifiedError); 202aa374120SPatrick Venture } 203aa374120SPatrick Venture 204aa374120SPatrick Venture // Write succeeded, please continue. 205aa374120SPatrick Venture ofs.flush(); 206aa374120SPatrick Venture ofs.close(); 207aa374120SPatrick Venture 208aa374120SPatrick Venture auto bus = sdbusplus::bus::new_default(); 209aa374120SPatrick Venture auto method = bus.new_method_call(SYSTEMD_SERVICE, SYSTEMD_ROOT, 210aa374120SPatrick Venture SYSTEMD_INTERFACE, "StartUnit"); 211aa374120SPatrick Venture 212aa374120SPatrick Venture method.append(PSU_HARDRESET_TARGET); 213aa374120SPatrick Venture method.append("replace"); 214aa374120SPatrick Venture 215aa374120SPatrick Venture try 216aa374120SPatrick Venture { 217aa374120SPatrick Venture bus.call_noreply(method); 218aa374120SPatrick Venture } 219aa374120SPatrick Venture catch (const sdbusplus::exception::SdBusError& ex) 220aa374120SPatrick Venture { 221aa374120SPatrick Venture log<level::ERR>("Failed to call PSU hard reset"); 222e5a06675SMichael Shen throw IpmiException(::ipmi::ccUnspecifiedError); 223aa374120SPatrick Venture } 224aa374120SPatrick Venture } 225aa374120SPatrick Venture 226ac4a16f7SShounak Mitra static constexpr auto RESET_ON_SHUTDOWN_FILENAME = "/run/powercycle_on_s5"; 227ac4a16f7SShounak Mitra 228ac4a16f7SShounak Mitra void Handler::psuResetOnShutdown() const 229ac4a16f7SShounak Mitra { 230ac4a16f7SShounak Mitra std::ofstream ofs; 231ac4a16f7SShounak Mitra ofs.open(RESET_ON_SHUTDOWN_FILENAME, std::ofstream::out); 232ac4a16f7SShounak Mitra if (!ofs.good()) 233ac4a16f7SShounak Mitra { 234ac4a16f7SShounak Mitra std::fprintf(stderr, "Unable to open file for output.\n"); 235e5a06675SMichael Shen throw IpmiException(::ipmi::ccUnspecifiedError); 236ac4a16f7SShounak Mitra } 237ac4a16f7SShounak Mitra ofs.close(); 238ac4a16f7SShounak Mitra } 239ac4a16f7SShounak Mitra 2403b1b427cSWilly Tu uint32_t Handler::getFlashSize() 2413b1b427cSWilly Tu { 2423b1b427cSWilly Tu mtd_info_t info; 2433b1b427cSWilly Tu int fd = open("/dev/mtd0", O_RDONLY); 2443b1b427cSWilly Tu int err = ioctl(fd, MEMGETINFO, &info); 2453b1b427cSWilly Tu close(fd); 2463b1b427cSWilly Tu 2473b1b427cSWilly Tu if (err) 2483b1b427cSWilly Tu { 249e5a06675SMichael Shen throw IpmiException(::ipmi::ccUnspecifiedError); 2503b1b427cSWilly Tu } 2513b1b427cSWilly Tu return info.size; 2523b1b427cSWilly Tu } 2533b1b427cSWilly Tu 254ab650004SPatrick Venture std::string Handler::getEntityName(std::uint8_t id, std::uint8_t instance) 25507f85150SPatrick Venture { 256ab650004SPatrick Venture // Check if we support this Entity ID. 257ab650004SPatrick Venture auto it = _entityIdToName.find(id); 258ab650004SPatrick Venture if (it == _entityIdToName.end()) 25907f85150SPatrick Venture { 260ab650004SPatrick Venture log<level::ERR>("Unknown Entity ID", entry("ENTITY_ID=%d", id)); 261e5a06675SMichael Shen throw IpmiException(::ipmi::ccInvalidFieldRequest); 26207f85150SPatrick Venture } 26307f85150SPatrick Venture 264ab650004SPatrick Venture std::string entityName; 265ab650004SPatrick Venture try 26607f85150SPatrick Venture { 267ab650004SPatrick Venture // Parse the JSON config file. 268ab650004SPatrick Venture if (!_entityConfigParsed) 269ab650004SPatrick Venture { 270ab650004SPatrick Venture _entityConfig = parseConfig(_configFile); 271ab650004SPatrick Venture _entityConfigParsed = true; 27207f85150SPatrick Venture } 27307f85150SPatrick Venture 274ab650004SPatrick Venture // Find the "entity id:entity instance" mapping to entity name. 275ab650004SPatrick Venture entityName = readNameFromConfig(it->second, instance, _entityConfig); 276ab650004SPatrick Venture if (entityName.empty()) 277ab650004SPatrick Venture { 278e5a06675SMichael Shen throw IpmiException(::ipmi::ccInvalidFieldRequest); 279ab650004SPatrick Venture } 280ab650004SPatrick Venture } 281ab650004SPatrick Venture catch (InternalFailure& e) 282ab650004SPatrick Venture { 283e5a06675SMichael Shen throw IpmiException(::ipmi::ccUnspecifiedError); 28407f85150SPatrick Venture } 28507f85150SPatrick Venture 286ab650004SPatrick Venture return entityName; 287ab650004SPatrick Venture } 288ab650004SPatrick Venture 28929f35bceSWilliam A. Kennington III std::string Handler::getMachineName() 29029f35bceSWilliam A. Kennington III { 29129f35bceSWilliam A. Kennington III const char* path = "/etc/os-release"; 29229f35bceSWilliam A. Kennington III std::ifstream ifs(path); 29329f35bceSWilliam A. Kennington III if (ifs.fail()) 29429f35bceSWilliam A. Kennington III { 29529f35bceSWilliam A. Kennington III std::fprintf(stderr, "Failed to open: %s\n", path); 296e5a06675SMichael Shen throw IpmiException(::ipmi::ccUnspecifiedError); 29729f35bceSWilliam A. Kennington III } 29829f35bceSWilliam A. Kennington III 29929f35bceSWilliam A. Kennington III std::string line; 30029f35bceSWilliam A. Kennington III while (true) 30129f35bceSWilliam A. Kennington III { 30229f35bceSWilliam A. Kennington III std::getline(ifs, line); 30329f35bceSWilliam A. Kennington III if (ifs.eof()) 30429f35bceSWilliam A. Kennington III { 30529f35bceSWilliam A. Kennington III std::fprintf(stderr, "Failed to find OPENBMC_TARGET_MACHINE: %s\n", 30629f35bceSWilliam A. Kennington III path); 307e5a06675SMichael Shen throw IpmiException(::ipmi::ccInvalidCommand); 30829f35bceSWilliam A. Kennington III } 30929f35bceSWilliam A. Kennington III if (ifs.fail()) 31029f35bceSWilliam A. Kennington III { 31129f35bceSWilliam A. Kennington III std::fprintf(stderr, "Failed to read: %s\n", path); 312e5a06675SMichael Shen throw IpmiException(::ipmi::ccUnspecifiedError); 31329f35bceSWilliam A. Kennington III } 31429f35bceSWilliam A. Kennington III std::string_view lineView(line); 31529f35bceSWilliam A. Kennington III constexpr std::string_view prefix = "OPENBMC_TARGET_MACHINE="; 31629f35bceSWilliam A. Kennington III if (lineView.substr(0, prefix.size()) != prefix) 31729f35bceSWilliam A. Kennington III { 31829f35bceSWilliam A. Kennington III continue; 31929f35bceSWilliam A. Kennington III } 32029f35bceSWilliam A. Kennington III lineView.remove_prefix(prefix.size()); 32129f35bceSWilliam A. Kennington III lineView.remove_prefix( 32229f35bceSWilliam A. Kennington III std::min(lineView.find_first_not_of('"'), lineView.size())); 32329f35bceSWilliam A. Kennington III lineView.remove_suffix( 32429f35bceSWilliam A. Kennington III lineView.size() - 1 - 32529f35bceSWilliam A. Kennington III std::min(lineView.find_last_not_of('"'), lineView.size() - 1)); 32629f35bceSWilliam A. Kennington III return std::string(lineView); 32729f35bceSWilliam A. Kennington III } 32829f35bceSWilliam A. Kennington III } 32929f35bceSWilliam A. Kennington III 3308cfa4c44Slinyuny static constexpr auto HOST_TIME_DELAY_FILENAME = "/run/host_poweroff_delay"; 3318cfa4c44Slinyuny static constexpr auto HOST_POWEROFF_TARGET = "gbmc-host-poweroff.target"; 3328cfa4c44Slinyuny 3338cfa4c44Slinyuny void Handler::hostPowerOffDelay(std::uint32_t delay) const 3348cfa4c44Slinyuny { 3358cfa4c44Slinyuny // Set time delay 3368cfa4c44Slinyuny std::ofstream ofs; 3378cfa4c44Slinyuny ofs.open(HOST_TIME_DELAY_FILENAME, std::ofstream::out); 3388cfa4c44Slinyuny if (!ofs.good()) 3398cfa4c44Slinyuny { 3408cfa4c44Slinyuny std::fprintf(stderr, "Unable to open file for output.\n"); 341e5a06675SMichael Shen throw IpmiException(::ipmi::ccUnspecifiedError); 3428cfa4c44Slinyuny } 3438cfa4c44Slinyuny 3448cfa4c44Slinyuny ofs << "HOST_POWEROFF_DELAY=" << delay << std::endl; 3458cfa4c44Slinyuny ofs.close(); 3468cfa4c44Slinyuny if (ofs.fail()) 3478cfa4c44Slinyuny { 3488cfa4c44Slinyuny std::fprintf(stderr, "Write failed\n"); 349e5a06675SMichael Shen throw IpmiException(::ipmi::ccUnspecifiedError); 3508cfa4c44Slinyuny } 3518cfa4c44Slinyuny 3528cfa4c44Slinyuny // Write succeeded, please continue. 3538cfa4c44Slinyuny auto bus = sdbusplus::bus::new_default(); 3548cfa4c44Slinyuny auto method = bus.new_method_call(SYSTEMD_SERVICE, SYSTEMD_ROOT, 3558cfa4c44Slinyuny SYSTEMD_INTERFACE, "StartUnit"); 3568cfa4c44Slinyuny 3578cfa4c44Slinyuny method.append(HOST_POWEROFF_TARGET); 3588cfa4c44Slinyuny method.append("replace"); 3598cfa4c44Slinyuny 3608cfa4c44Slinyuny try 3618cfa4c44Slinyuny { 3628cfa4c44Slinyuny bus.call_noreply(method); 3638cfa4c44Slinyuny } 3648cfa4c44Slinyuny catch (const sdbusplus::exception::SdBusError& ex) 3658cfa4c44Slinyuny { 3668cfa4c44Slinyuny log<level::ERR>("Failed to call Power Off", 3678cfa4c44Slinyuny entry("WHAT=%s", ex.what())); 368e5a06675SMichael Shen throw IpmiException(::ipmi::ccUnspecifiedError); 3698cfa4c44Slinyuny } 3708cfa4c44Slinyuny } 3718cfa4c44Slinyuny 372ab650004SPatrick Venture std::string readNameFromConfig(const std::string& type, uint8_t instance, 373ab650004SPatrick Venture const Json& config) 37407f85150SPatrick Venture { 37507f85150SPatrick Venture static const std::vector<Json> empty{}; 37607f85150SPatrick Venture std::vector<Json> readings = config.value(type, empty); 37707f85150SPatrick Venture std::string name = ""; 378ab650004SPatrick Venture 37907f85150SPatrick Venture for (const auto& j : readings) 38007f85150SPatrick Venture { 38107f85150SPatrick Venture uint8_t instanceNum = j.value("instance", 0); 38207f85150SPatrick Venture // Not the instance we're interested in 38307f85150SPatrick Venture if (instanceNum != instance) 38407f85150SPatrick Venture { 38507f85150SPatrick Venture continue; 38607f85150SPatrick Venture } 38707f85150SPatrick Venture 38807f85150SPatrick Venture // Found the instance we're interested in 38907f85150SPatrick Venture name = j.value("name", ""); 39007f85150SPatrick Venture 39107f85150SPatrick Venture break; 39207f85150SPatrick Venture } 393ab650004SPatrick Venture 39407f85150SPatrick Venture return name; 39507f85150SPatrick Venture } 39607f85150SPatrick Venture 39749f23ad9SPatrick Venture void Handler::buildI2cPcieMapping() 39849f23ad9SPatrick Venture { 39949f23ad9SPatrick Venture _pcie_i2c_map = buildPcieMap(); 40049f23ad9SPatrick Venture } 40149f23ad9SPatrick Venture 40249f23ad9SPatrick Venture size_t Handler::getI2cPcieMappingSize() const 40349f23ad9SPatrick Venture { 40449f23ad9SPatrick Venture return _pcie_i2c_map.size(); 40549f23ad9SPatrick Venture } 40649f23ad9SPatrick Venture 40749f23ad9SPatrick Venture std::tuple<std::uint32_t, std::string> 40849f23ad9SPatrick Venture Handler::getI2cEntry(unsigned int entry) const 40949f23ad9SPatrick Venture { 41049f23ad9SPatrick Venture return _pcie_i2c_map[entry]; 41149f23ad9SPatrick Venture } 41249f23ad9SPatrick Venture 4134f0d1de6SSteve Foreman namespace 4144f0d1de6SSteve Foreman { 4154f0d1de6SSteve Foreman 4164f0d1de6SSteve Foreman static constexpr std::string_view ACCEL_OOB_ROOT = "/com/google/customAccel/"; 4174f0d1de6SSteve Foreman static constexpr char ACCEL_OOB_SERVICE[] = "com.google.custom_accel"; 4184f0d1de6SSteve Foreman static constexpr char ACCEL_OOB_INTERFACE[] = "com.google.custom_accel.BAR"; 4194f0d1de6SSteve Foreman 4204f0d1de6SSteve Foreman // C type for "a{oa{sa{sv}}}" from DBus.ObjectManager::GetManagedObjects() 4214f0d1de6SSteve Foreman using AnyType = std::variant<std::string, uint8_t, uint32_t, uint64_t>; 4224f0d1de6SSteve Foreman using AnyTypeList = std::vector<std::pair<std::string, AnyType>>; 4234f0d1de6SSteve Foreman using NamedArrayOfAnyTypeLists = 4244f0d1de6SSteve Foreman std::vector<std::pair<std::string, AnyTypeList>>; 4254f0d1de6SSteve Foreman using ArrayOfObjectPathsAndTieredAnyTypeLists = std::vector< 4264f0d1de6SSteve Foreman std::pair<sdbusplus::message::object_path, NamedArrayOfAnyTypeLists>>; 4274f0d1de6SSteve Foreman 4284f0d1de6SSteve Foreman } // namespace 4294f0d1de6SSteve Foreman 4300e928ac6SMichael Shen sdbusplus::bus::bus Handler::getDbus() const 4314f0d1de6SSteve Foreman { 4324f0d1de6SSteve Foreman return sdbusplus::bus::new_default(); 4334f0d1de6SSteve Foreman } 4344f0d1de6SSteve Foreman 4354f0d1de6SSteve Foreman uint32_t Handler::accelOobDeviceCount() const 4364f0d1de6SSteve Foreman { 4374f0d1de6SSteve Foreman ArrayOfObjectPathsAndTieredAnyTypeLists data; 4384f0d1de6SSteve Foreman 4394f0d1de6SSteve Foreman try 4404f0d1de6SSteve Foreman { 4410e928ac6SMichael Shen auto bus = getDbus(); 4424f0d1de6SSteve Foreman auto method = bus.new_method_call(ACCEL_OOB_SERVICE, "/", 4434f0d1de6SSteve Foreman "org.freedesktop.DBus.ObjectManager", 4444f0d1de6SSteve Foreman "GetManagedObjects"); 4454f0d1de6SSteve Foreman bus.call(method).read(data); 4464f0d1de6SSteve Foreman } 4474f0d1de6SSteve Foreman catch (const sdbusplus::exception::SdBusError& ex) 4484f0d1de6SSteve Foreman { 4494f0d1de6SSteve Foreman log<level::ERR>( 4504f0d1de6SSteve Foreman "Failed to call GetManagedObjects on com.google.custom_accel", 4514f0d1de6SSteve Foreman entry("WHAT=%s", ex.what())); 452e5a06675SMichael Shen throw IpmiException(::ipmi::ccUnspecifiedError); 4534f0d1de6SSteve Foreman } 4544f0d1de6SSteve Foreman 4554f0d1de6SSteve Foreman return data.size(); 4564f0d1de6SSteve Foreman } 4574f0d1de6SSteve Foreman 4584f0d1de6SSteve Foreman std::string Handler::accelOobDeviceName(size_t index) const 4594f0d1de6SSteve Foreman { 4604f0d1de6SSteve Foreman ArrayOfObjectPathsAndTieredAnyTypeLists data; 4614f0d1de6SSteve Foreman 4624f0d1de6SSteve Foreman try 4634f0d1de6SSteve Foreman { 4640e928ac6SMichael Shen auto bus = getDbus(); 4654f0d1de6SSteve Foreman auto method = bus.new_method_call(ACCEL_OOB_SERVICE, "/", 4664f0d1de6SSteve Foreman "org.freedesktop.DBus.ObjectManager", 4674f0d1de6SSteve Foreman "GetManagedObjects"); 4684f0d1de6SSteve Foreman bus.call(method).read(data); 4694f0d1de6SSteve Foreman } 4704f0d1de6SSteve Foreman catch (const sdbusplus::exception::SdBusError& ex) 4714f0d1de6SSteve Foreman { 4724f0d1de6SSteve Foreman log<level::ERR>( 4734f0d1de6SSteve Foreman "Failed to call GetManagedObjects on com.google.custom_accel", 4744f0d1de6SSteve Foreman entry("WHAT=%s", ex.what())); 475e5a06675SMichael Shen throw IpmiException(::ipmi::ccUnspecifiedError); 4764f0d1de6SSteve Foreman } 4774f0d1de6SSteve Foreman 4784f0d1de6SSteve Foreman if (index >= data.size()) 4794f0d1de6SSteve Foreman { 4804f0d1de6SSteve Foreman log<level::WARNING>( 4814f0d1de6SSteve Foreman "Requested index is larger than the number of entries.", 4824f0d1de6SSteve Foreman entry("INDEX=%zu", index), entry("NUM_NAMES=%zu", data.size())); 483e5a06675SMichael Shen throw IpmiException(::ipmi::ccParmOutOfRange); 4844f0d1de6SSteve Foreman } 4854f0d1de6SSteve Foreman 4864f0d1de6SSteve Foreman std::string_view name(data[index].first.str); 4874f0d1de6SSteve Foreman if (!name.starts_with(ACCEL_OOB_ROOT)) 4884f0d1de6SSteve Foreman { 489e5a06675SMichael Shen throw IpmiException(::ipmi::ccInvalidCommand); 4904f0d1de6SSteve Foreman } 4914f0d1de6SSteve Foreman name.remove_prefix(ACCEL_OOB_ROOT.length()); 4924f0d1de6SSteve Foreman return std::string(name); 4934f0d1de6SSteve Foreman } 4944f0d1de6SSteve Foreman 4954f0d1de6SSteve Foreman uint64_t Handler::accelOobRead(std::string_view name, uint64_t address, 4964f0d1de6SSteve Foreman uint8_t num_bytes) const 4974f0d1de6SSteve Foreman { 4984f0d1de6SSteve Foreman static constexpr char ACCEL_OOB_METHOD[] = "Read"; 4994f0d1de6SSteve Foreman 5004f0d1de6SSteve Foreman std::string object_name(ACCEL_OOB_ROOT); 5014f0d1de6SSteve Foreman object_name.append(name); 5024f0d1de6SSteve Foreman 5030e928ac6SMichael Shen auto bus = getDbus(); 5044f0d1de6SSteve Foreman auto method = bus.new_method_call(ACCEL_OOB_SERVICE, object_name.c_str(), 5054f0d1de6SSteve Foreman ACCEL_OOB_INTERFACE, ACCEL_OOB_METHOD); 5064f0d1de6SSteve Foreman method.append(address, static_cast<uint64_t>(num_bytes)); 5074f0d1de6SSteve Foreman 5084f0d1de6SSteve Foreman std::vector<uint8_t> bytes; 5094f0d1de6SSteve Foreman 5104f0d1de6SSteve Foreman try 5114f0d1de6SSteve Foreman { 5124f0d1de6SSteve Foreman bus.call(method).read(bytes); 5134f0d1de6SSteve Foreman } 5144f0d1de6SSteve Foreman catch (const sdbusplus::exception::SdBusError& ex) 5154f0d1de6SSteve Foreman { 5164f0d1de6SSteve Foreman log<level::ERR>("Failed to call Read on com.google.custom_accel", 5174f0d1de6SSteve Foreman entry("WHAT=%s", ex.what()), 5184f0d1de6SSteve Foreman entry("DBUS_SERVICE=%s", ACCEL_OOB_SERVICE), 5194f0d1de6SSteve Foreman entry("DBUS_OBJECT=%s", object_name.c_str()), 5204f0d1de6SSteve Foreman entry("DBUS_INTERFACE=%s", ACCEL_OOB_INTERFACE), 5214f0d1de6SSteve Foreman entry("DBUS_METHOD=%s", ACCEL_OOB_METHOD), 5224f0d1de6SSteve Foreman entry("DBUS_ARG_ADDRESS=%016llx", address), 5234f0d1de6SSteve Foreman entry("DBUS_ARG_NUM_BYTES=%zu", (size_t)num_bytes)); 524e5a06675SMichael Shen throw IpmiException(::ipmi::ccUnspecifiedError); 5254f0d1de6SSteve Foreman } 5264f0d1de6SSteve Foreman 5274f0d1de6SSteve Foreman if (bytes.size() < num_bytes) 5284f0d1de6SSteve Foreman { 5294f0d1de6SSteve Foreman log<level::ERR>( 5304f0d1de6SSteve Foreman "Call to Read on com.google.custom_accel didn't return the expected" 5314f0d1de6SSteve Foreman " number of bytes.", 5324f0d1de6SSteve Foreman entry("DBUS_SERVICE=%s", ACCEL_OOB_SERVICE), 5334f0d1de6SSteve Foreman entry("DBUS_OBJECT=%s", object_name.c_str()), 5344f0d1de6SSteve Foreman entry("DBUS_INTERFACE=%s", ACCEL_OOB_INTERFACE), 5354f0d1de6SSteve Foreman entry("DBUS_METHOD=%s", ACCEL_OOB_METHOD), 5364f0d1de6SSteve Foreman entry("DBUS_ARG_ADDRESS=%016llx", address), 5374f0d1de6SSteve Foreman entry("DBUS_ARG_NUM_BYTES=%zu", (size_t)num_bytes), 5384f0d1de6SSteve Foreman entry("DBUS_RETURN_SIZE=%zu", bytes.size())); 539e5a06675SMichael Shen throw IpmiException(::ipmi::ccUnspecifiedError); 5404f0d1de6SSteve Foreman } 5414f0d1de6SSteve Foreman 5424f0d1de6SSteve Foreman if (bytes.size() > sizeof(uint64_t)) 5434f0d1de6SSteve Foreman { 5444f0d1de6SSteve Foreman log<level::ERR>( 5454f0d1de6SSteve Foreman "Call to Read on com.google.custom_accel returned more than 8B.", 5464f0d1de6SSteve Foreman entry("DBUS_SERVICE=%s", ACCEL_OOB_SERVICE), 5474f0d1de6SSteve Foreman entry("DBUS_OBJECT=%s", object_name.c_str()), 5484f0d1de6SSteve Foreman entry("DBUS_INTERFACE=%s", ACCEL_OOB_INTERFACE), 5494f0d1de6SSteve Foreman entry("DBUS_METHOD=%s", ACCEL_OOB_METHOD), 5504f0d1de6SSteve Foreman entry("DBUS_ARG_ADDRESS=%016llx", address), 5514f0d1de6SSteve Foreman entry("DBUS_ARG_NUM_BYTES=%zu", (size_t)num_bytes), 5524f0d1de6SSteve Foreman entry("DBUS_RETURN_SIZE=%zu", bytes.size())); 553e5a06675SMichael Shen throw IpmiException(::ipmi::ccReqDataTruncated); 5544f0d1de6SSteve Foreman } 5554f0d1de6SSteve Foreman 5564f0d1de6SSteve Foreman uint64_t data = 0; 5574f0d1de6SSteve Foreman for (size_t i = 0; i < num_bytes; ++i) 5584f0d1de6SSteve Foreman { 5594f0d1de6SSteve Foreman data = (data << 8) | bytes[i]; 5604f0d1de6SSteve Foreman } 5614f0d1de6SSteve Foreman 5624f0d1de6SSteve Foreman return data; 5634f0d1de6SSteve Foreman } 5644f0d1de6SSteve Foreman 5654f0d1de6SSteve Foreman void Handler::accelOobWrite(std::string_view name, uint64_t address, 5664f0d1de6SSteve Foreman uint8_t num_bytes, uint64_t data) const 5674f0d1de6SSteve Foreman { 5684f0d1de6SSteve Foreman static constexpr std::string_view ACCEL_OOB_METHOD = "Write"; 5694f0d1de6SSteve Foreman 5704f0d1de6SSteve Foreman std::string object_name(ACCEL_OOB_ROOT); 5714f0d1de6SSteve Foreman object_name.append(name); 5724f0d1de6SSteve Foreman 5734f0d1de6SSteve Foreman if (num_bytes > sizeof(data)) 5744f0d1de6SSteve Foreman { 5754f0d1de6SSteve Foreman log<level::ERR>( 5764f0d1de6SSteve Foreman "Call to Write on com.google.custom_accel requested more than 8B.", 5774f0d1de6SSteve Foreman entry("DBUS_SERVICE=%s", ACCEL_OOB_SERVICE), 5784f0d1de6SSteve Foreman entry("DBUS_OBJECT=%s", object_name.c_str()), 5794f0d1de6SSteve Foreman entry("DBUS_INTERFACE=%s", ACCEL_OOB_INTERFACE), 5804f0d1de6SSteve Foreman entry("DBUS_METHOD=%s", ACCEL_OOB_METHOD.data()), 5814f0d1de6SSteve Foreman entry("DBUS_ARG_ADDRESS=%016llx", address), 5824f0d1de6SSteve Foreman entry("DBUS_ARG_NUM_BYTES=%zu", (size_t)num_bytes), 5834f0d1de6SSteve Foreman entry("DBUS_ARG_DATA=%016llx", data)); 584e5a06675SMichael Shen throw IpmiException(::ipmi::ccParmOutOfRange); 5854f0d1de6SSteve Foreman } 5864f0d1de6SSteve Foreman 5874f0d1de6SSteve Foreman std::vector<uint8_t> bytes; 5884f0d1de6SSteve Foreman bytes.reserve(num_bytes); 5894f0d1de6SSteve Foreman for (size_t i = 0; i < num_bytes; ++i) 5904f0d1de6SSteve Foreman { 5914f0d1de6SSteve Foreman bytes.emplace_back(data & 0xff); 5924f0d1de6SSteve Foreman data >>= 8; 5934f0d1de6SSteve Foreman } 5944f0d1de6SSteve Foreman 5954f0d1de6SSteve Foreman try 5964f0d1de6SSteve Foreman { 5970e928ac6SMichael Shen auto bus = getDbus(); 5984f0d1de6SSteve Foreman auto method = 5994f0d1de6SSteve Foreman bus.new_method_call(ACCEL_OOB_SERVICE, object_name.c_str(), 6004f0d1de6SSteve Foreman ACCEL_OOB_INTERFACE, ACCEL_OOB_METHOD.data()); 6014f0d1de6SSteve Foreman method.append(address, bytes); 6024f0d1de6SSteve Foreman bus.call_noreply(method); 6034f0d1de6SSteve Foreman } 6044f0d1de6SSteve Foreman catch (const sdbusplus::exception::SdBusError& ex) 6054f0d1de6SSteve Foreman { 6064f0d1de6SSteve Foreman log<level::ERR>("Failed to call Write on com.google.custom_accel", 6074f0d1de6SSteve Foreman entry("WHAT=%s", ex.what()), 6084f0d1de6SSteve Foreman entry("DBUS_SERVICE=%s", ACCEL_OOB_SERVICE), 6094f0d1de6SSteve Foreman entry("DBUS_OBJECT=%s", object_name.c_str()), 6104f0d1de6SSteve Foreman entry("DBUS_INTERFACE=%s", ACCEL_OOB_INTERFACE), 6114f0d1de6SSteve Foreman entry("DBUS_METHOD=%s", ACCEL_OOB_METHOD.data()), 6124f0d1de6SSteve Foreman entry("DBUS_ARG_ADDRESS=%016llx", address), 6134f0d1de6SSteve Foreman entry("DBUS_ARG_NUM_BYTES=%zu", (size_t)num_bytes), 6144f0d1de6SSteve Foreman entry("DBUS_ARG_DATA=%016llx", data)); 615e5a06675SMichael Shen throw IpmiException(::ipmi::ccUnspecifiedError); 6164f0d1de6SSteve Foreman } 6174f0d1de6SSteve Foreman } 6184f0d1de6SSteve Foreman 6196c71b0f9SWilly Tu std::vector<uint8_t> Handler::pcieBifurcation(uint8_t index) 6206c71b0f9SWilly Tu { 6216c71b0f9SWilly Tu return bifurcationHelper.get().getBifurcation(index).value_or( 6226c71b0f9SWilly Tu std::vector<uint8_t>{}); 6236c71b0f9SWilly Tu } 6246c71b0f9SWilly Tu 625f085d91dSPatrick Venture } // namespace ipmi 626f085d91dSPatrick Venture } // namespace google 627