xref: /openbmc/bmcweb/redfish-core/lib/power.hpp (revision d8a5d5d8) 
1 /*
2 // Copyright (c) 2018 Intel Corporation
3 // Copyright (c) 2018 Ampere Computing LLC
4 /
5 // Licensed under the Apache License, Version 2.0 (the "License");
6 // you may not use this file except in compliance with the License.
7 // You may obtain a copy of the License at
8 //
9 //      http://www.apache.org/licenses/LICENSE-2.0
10 //
11 // Unless required by applicable law or agreed to in writing, software
12 // distributed under the License is distributed on an "AS IS" BASIS,
13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 // See the License for the specific language governing permissions and
15 // limitations under the License.
16 */
17 #pragma once
18 
19 #include "sensors.hpp"
20 #include "utils/chassis_utils.hpp"
21 
22 #include <app.hpp>
23 #include <dbus_utility.hpp>
24 #include <query.hpp>
25 #include <registries/privilege_registry.hpp>
26 
27 namespace redfish
28 {
29 inline void setPowerCapOverride(
30     const std::shared_ptr<SensorsAsyncResp>& sensorsAsyncResp,
31     std::vector<nlohmann::json>& powerControlCollections)
32 {
33     auto getChassisPath =
34         [sensorsAsyncResp, powerControlCollections](
35             const std::optional<std::string>& chassisPath) mutable {
36         if (!chassisPath)
37         {
38             BMCWEB_LOG_ERROR << "Don't find valid chassis path ";
39             messages::resourceNotFound(sensorsAsyncResp->asyncResp->res,
40                                        "Chassis", sensorsAsyncResp->chassisId);
41             return;
42         }
43 
44         if (powerControlCollections.size() != 1)
45         {
46             BMCWEB_LOG_ERROR << "Don't support multiple hosts at present ";
47             messages::resourceNotFound(sensorsAsyncResp->asyncResp->res,
48                                        "Power", "PowerControl");
49             return;
50         }
51 
52         auto& item = powerControlCollections[0];
53 
54         std::optional<nlohmann::json> powerLimit;
55         if (!json_util::readJson(item, sensorsAsyncResp->asyncResp->res,
56                                  "PowerLimit", powerLimit))
57         {
58             return;
59         }
60         if (!powerLimit)
61         {
62             return;
63         }
64         std::optional<uint32_t> value;
65         if (!json_util::readJson(*powerLimit, sensorsAsyncResp->asyncResp->res,
66                                  "LimitInWatts", value))
67         {
68             return;
69         }
70         if (!value)
71         {
72             return;
73         }
74         sdbusplus::asio::getProperty<bool>(
75             *crow::connections::systemBus, "xyz.openbmc_project.Settings",
76             "/xyz/openbmc_project/control/host0/power_cap",
77             "xyz.openbmc_project.Control.Power.Cap", "PowerCapEnable",
78             [value, sensorsAsyncResp](const boost::system::error_code ec,
79                                       bool powerCapEnable) {
80             if (ec)
81             {
82                 messages::internalError(sensorsAsyncResp->asyncResp->res);
83                 BMCWEB_LOG_ERROR << "powerCapEnable Get handler: Dbus error "
84                                  << ec;
85                 return;
86             }
87             if (!powerCapEnable)
88             {
89                 messages::actionNotSupported(
90                     sensorsAsyncResp->asyncResp->res,
91                     "Setting LimitInWatts when PowerLimit feature is disabled");
92                 BMCWEB_LOG_ERROR << "PowerLimit feature is disabled ";
93                 return;
94             }
95 
96             crow::connections::systemBus->async_method_call(
97                 [sensorsAsyncResp](const boost::system::error_code ec2) {
98                 if (ec2)
99                 {
100                     BMCWEB_LOG_DEBUG << "Power Limit Set: Dbus error: " << ec2;
101                     messages::internalError(sensorsAsyncResp->asyncResp->res);
102                     return;
103                 }
104                 sensorsAsyncResp->asyncResp->res.result(
105                     boost::beast::http::status::no_content);
106                 },
107                 "xyz.openbmc_project.Settings",
108                 "/xyz/openbmc_project/control/host0/power_cap",
109                 "org.freedesktop.DBus.Properties", "Set",
110                 "xyz.openbmc_project.Control.Power.Cap", "PowerCap",
111                 std::variant<uint32_t>(*value));
112             });
113     };
114     redfish::chassis_utils::getValidChassisPath(sensorsAsyncResp->asyncResp,
115                                                 sensorsAsyncResp->chassisId,
116                                                 std::move(getChassisPath));
117 }
118 inline void requestRoutesPower(App& app)
119 {
120 
121     BMCWEB_ROUTE(app, "/redfish/v1/Chassis/<str>/Power/")
122         .privileges(redfish::privileges::getPower)
123         .methods(boost::beast::http::verb::get)(
124             [&app](const crow::Request& req,
125                    const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
126                    const std::string& chassisName) {
127         if (!redfish::setUpRedfishRoute(app, req, asyncResp))
128         {
129             return;
130         }
131         asyncResp->res.jsonValue["PowerControl"] = nlohmann::json::array();
132 
133         auto sensorAsyncResp = std::make_shared<SensorsAsyncResp>(
134             asyncResp, chassisName, sensors::dbus::powerPaths,
135             sensors::node::power);
136 
137         getChassisData(sensorAsyncResp);
138 
139         // This callback verifies that the power limit is only provided
140         // for the chassis that implements the Chassis inventory item.
141         // This prevents things like power supplies providing the
142         // chassis power limit
143 
144         using Mapper = dbus::utility::MapperGetSubTreePathsResponse;
145         auto chassisHandler =
146             [sensorAsyncResp](const boost::system::error_code e,
147                               const Mapper& chassisPaths) {
148             if (e)
149             {
150                 BMCWEB_LOG_ERROR
151                     << "Power Limit GetSubTreePaths handler Dbus error " << e;
152                 return;
153             }
154 
155             bool found = false;
156             for (const std::string& chassis : chassisPaths)
157             {
158                 size_t len = std::string::npos;
159                 size_t lastPos = chassis.rfind('/');
160                 if (lastPos == std::string::npos)
161                 {
162                     continue;
163                 }
164 
165                 if (lastPos == chassis.size() - 1)
166                 {
167                     size_t end = lastPos;
168                     lastPos = chassis.rfind('/', lastPos - 1);
169                     if (lastPos == std::string::npos)
170                     {
171                         continue;
172                     }
173 
174                     len = end - (lastPos + 1);
175                 }
176 
177                 std::string interfaceChassisName =
178                     chassis.substr(lastPos + 1, len);
179                 if (interfaceChassisName == sensorAsyncResp->chassisId)
180                 {
181                     found = true;
182                     break;
183                 }
184             }
185 
186             if (!found)
187             {
188                 BMCWEB_LOG_DEBUG << "Power Limit not present for "
189                                  << sensorAsyncResp->chassisId;
190                 return;
191             }
192 
193             auto valueHandler =
194                 [sensorAsyncResp](
195                     const boost::system::error_code ec,
196                     const dbus::utility::DBusPropertiesMap& properties) {
197                 if (ec)
198                 {
199                     messages::internalError(sensorAsyncResp->asyncResp->res);
200                     BMCWEB_LOG_ERROR
201                         << "Power Limit GetAll handler: Dbus error " << ec;
202                     return;
203                 }
204 
205                 nlohmann::json& tempArray =
206                     sensorAsyncResp->asyncResp->res.jsonValue["PowerControl"];
207 
208                 // Put multiple "sensors" into a single PowerControl, 0,
209                 // so only create the first one
210                 if (tempArray.empty())
211                 {
212                     // Mandatory properties odata.id and MemberId
213                     // A warning without a odata.type
214                     nlohmann::json::object_t powerControl;
215                     powerControl["@odata.type"] = "#Power.v1_0_0.PowerControl";
216                     powerControl["@odata.id"] = "/redfish/v1/Chassis/" +
217                                                 sensorAsyncResp->chassisId +
218                                                 "/Power#/PowerControl/0";
219                     powerControl["Name"] = "Chassis Power Control";
220                     powerControl["MemberId"] = "0";
221                     tempArray.push_back(std::move(powerControl));
222                 }
223 
224                 nlohmann::json& sensorJson = tempArray.back();
225                 bool enabled = false;
226                 double powerCap = 0.0;
227                 int64_t scale = 0;
228 
229                 for (const std::pair<std::string,
230                                      dbus::utility::DbusVariantType>& property :
231                      properties)
232                 {
233                     if (property.first == "Scale")
234                     {
235                         const int64_t* i =
236                             std::get_if<int64_t>(&property.second);
237 
238                         if (i != nullptr)
239                         {
240                             scale = *i;
241                         }
242                     }
243                     else if (property.first == "PowerCap")
244                     {
245                         const double* d = std::get_if<double>(&property.second);
246                         const int64_t* i =
247                             std::get_if<int64_t>(&property.second);
248                         const uint32_t* u =
249                             std::get_if<uint32_t>(&property.second);
250 
251                         if (d != nullptr)
252                         {
253                             powerCap = *d;
254                         }
255                         else if (i != nullptr)
256                         {
257                             powerCap = static_cast<double>(*i);
258                         }
259                         else if (u != nullptr)
260                         {
261                             powerCap = *u;
262                         }
263                     }
264                     else if (property.first == "PowerCapEnable")
265                     {
266                         const bool* b = std::get_if<bool>(&property.second);
267 
268                         if (b != nullptr)
269                         {
270                             enabled = *b;
271                         }
272                     }
273                 }
274 
275                 nlohmann::json& value =
276                     sensorJson["PowerLimit"]["LimitInWatts"];
277 
278                 // LimitException is Mandatory attribute as per OCP
279                 // Baseline Profile – v1.0.0, so currently making it
280                 // "NoAction" as default value to make it OCP Compliant.
281                 sensorJson["PowerLimit"]["LimitException"] = "NoAction";
282 
283                 if (enabled)
284                 {
285                     // Redfish specification indicates PowerLimit should
286                     // be null if the limit is not enabled.
287                     value = powerCap * std::pow(10, scale);
288                 }
289             };
290 
291             crow::connections::systemBus->async_method_call(
292                 std::move(valueHandler), "xyz.openbmc_project.Settings",
293                 "/xyz/openbmc_project/control/host0/power_cap",
294                 "org.freedesktop.DBus.Properties", "GetAll",
295                 "xyz.openbmc_project.Control.Power.Cap");
296         };
297 
298         crow::connections::systemBus->async_method_call(
299             std::move(chassisHandler), "xyz.openbmc_project.ObjectMapper",
300             "/xyz/openbmc_project/object_mapper",
301             "xyz.openbmc_project.ObjectMapper", "GetSubTreePaths",
302             "/xyz/openbmc_project/inventory", 0,
303             std::array<const char*, 2>{
304                 "xyz.openbmc_project.Inventory.Item.Board",
305                 "xyz.openbmc_project.Inventory.Item.Chassis"});
306         });
307 
308     BMCWEB_ROUTE(app, "/redfish/v1/Chassis/<str>/Power/")
309         .privileges(redfish::privileges::patchPower)
310         .methods(boost::beast::http::verb::patch)(
311             [&app](const crow::Request& req,
312                    const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
313                    const std::string& chassisName) {
314         if (!redfish::setUpRedfishRoute(app, req, asyncResp))
315         {
316             return;
317         }
318         auto sensorAsyncResp = std::make_shared<SensorsAsyncResp>(
319             asyncResp, chassisName, sensors::dbus::powerPaths,
320             sensors::node::power);
321 
322         std::optional<std::vector<nlohmann::json>> voltageCollections;
323         std::optional<std::vector<nlohmann::json>> powerCtlCollections;
324 
325         if (!json_util::readJsonPatch(req, sensorAsyncResp->asyncResp->res,
326                                       "PowerControl", powerCtlCollections,
327                                       "Voltages", voltageCollections))
328         {
329             return;
330         }
331 
332         if (powerCtlCollections)
333         {
334             setPowerCapOverride(sensorAsyncResp, *powerCtlCollections);
335         }
336         if (voltageCollections)
337         {
338             std::unordered_map<std::string, std::vector<nlohmann::json>>
339                 allCollections;
340             allCollections.emplace("Voltages", *std::move(voltageCollections));
341             setSensorsOverride(sensorAsyncResp, allCollections);
342         }
343         });
344 }
345 
346 } // namespace redfish
347