redfish-core/lib/pcie.hpp - openbmc/bmcweb - Gitiles

 /*
 // Copyright (c) 2018 Intel Corporation
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //      http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
 */

 #pragma once

 #include "node.hpp"

 #include <boost/system/linux_error.hpp>

 namespace redfish
 {

 static constexpr char const *pcieService = "xyz.openbmc_project.PCIe";
 static constexpr char const *pciePath = "/xyz/openbmc_project/PCIe";
 static constexpr char const *pcieDeviceInterface =
     "xyz.openbmc_project.PCIe.Device";

 static inline void getPCIeDeviceList(std::shared_ptr<AsyncResp> asyncResp,
                                      const std::string &name)
 {
     auto getPCIeMapCallback = [asyncResp, name](
                                   const boost::system::error_code ec,
                                   std::vector<std::string> &pcieDevicePaths) {
         if (ec)
         {
             BMCWEB_LOG_DEBUG << "no PCIe device paths found ec: "
                              << ec.message();
             // Not an error, system just doesn't have PCIe info
             return;
         }
         nlohmann::json &pcieDeviceList = asyncResp->res.jsonValue[name];
         pcieDeviceList = nlohmann::json::array();
         for (const std::string &pcieDevicePath : pcieDevicePaths)
         {
             size_t devStart = pcieDevicePath.rfind("/");
             if (devStart == std::string::npos)
             {
                 continue;
             }

             std::string devName = pcieDevicePath.substr(devStart + 1);
             if (devName.empty())
             {
                 continue;
             }
             pcieDeviceList.push_back(
                 {{"@odata.id",
                   "/redfish/v1/Systems/system/PCIeDevices/" + devName}});
         }
         asyncResp->res.jsonValue[name + "@odata.count"] = pcieDeviceList.size();
     };
     crow::connections::systemBus->async_method_call(
         std::move(getPCIeMapCallback), "xyz.openbmc_project.ObjectMapper",
         "/xyz/openbmc_project/object_mapper",
         "xyz.openbmc_project.ObjectMapper", "GetSubTreePaths",
         std::string(pciePath) + "/", 1, std::array<std::string, 0>());
 }

 class SystemPCIeDeviceCollection : public Node
 {
   public:
     template <typename CrowApp>
     SystemPCIeDeviceCollection(CrowApp &app) :
         Node(app, "/redfish/v1/Systems/system/PCIeDevices/")
     {
         entityPrivileges = {
             {boost::beast::http::verb::get, {{"Login"}}},
             {boost::beast::http::verb::head, {{"Login"}}},
             {boost::beast::http::verb::patch, {{"ConfigureManager"}}},
             {boost::beast::http::verb::put, {{"ConfigureManager"}}},
             {boost::beast::http::verb::delete_, {{"ConfigureManager"}}},
             {boost::beast::http::verb::post, {{"ConfigureManager"}}}};
     }

   private:
     /**
      * Functions triggers appropriate requests on DBus
      */
     void doGet(crow::Response &res, const crow::Request &req,
                const std::vector<std::string> &params) override
     {
         std::shared_ptr<AsyncResp> asyncResp = std::make_shared<AsyncResp>(res);
         asyncResp->res.jsonValue = {
             {"@odata.type", "#PCIeDeviceCollection.PCIeDeviceCollection"},
             {"@odata.id", "/redfish/v1/Systems/system/PCIeDevices"},
             {"Name", "PCIe Device Collection"},
             {"Description", "Collection of PCIe Devices"},
             {"Members", nlohmann::json::array()},
             {"Members@odata.count", 0}};
         getPCIeDeviceList(asyncResp, "Members");
     }
 };

 class SystemPCIeDevice : public Node
 {
   public:
     SystemPCIeDevice(CrowApp &app) :
         Node(app, "/redfish/v1/Systems/system/PCIeDevices/<str>/",
              std::string())
     {
         entityPrivileges = {
             {boost::beast::http::verb::get, {{"Login"}}},
             {boost::beast::http::verb::head, {{"Login"}}},
             {boost::beast::http::verb::patch, {{"ConfigureManager"}}},
             {boost::beast::http::verb::put, {{"ConfigureManager"}}},
             {boost::beast::http::verb::delete_, {{"ConfigureManager"}}},
             {boost::beast::http::verb::post, {{"ConfigureManager"}}}};
     }

   private:
     void doGet(crow::Response &res, const crow::Request &req,
                const std::vector<std::string> &params) override
     {
         std::shared_ptr<AsyncResp> asyncResp = std::make_shared<AsyncResp>(res);
         if (params.size() != 1)
         {
             messages::internalError(asyncResp->res);
             return;
         }
         const std::string &device = params[0];

         auto getPCIeDeviceCallback =
             [asyncResp,
              device](const boost::system::error_code ec,
                      boost::container::flat_map<
                          std::string, sdbusplus::message::variant<std::string>>
                          &pcieDevProperties) {
                 if (ec)
                 {
                     BMCWEB_LOG_DEBUG
                         << "failed to get PCIe Device properties ec: "
                         << ec.value() << ": " << ec.message();
                     if (ec.value() ==
                         boost::system::linux_error::bad_request_descriptor)
                     {
                         messages::resourceNotFound(asyncResp->res, "PCIeDevice",
                                                    device);
                     }
                     else
                     {
                         messages::internalError(asyncResp->res);
                     }
                     return;
                 }

                 asyncResp->res.jsonValue = {
                     {"@odata.type", "#PCIeDevice.v1_4_0.PCIeDevice"},
                     {"@odata.id",
                      "/redfish/v1/Systems/system/PCIeDevices/" + device},
                     {"Name", "PCIe Device"},
                     {"Id", device}};

                 if (std::string *property =
                         sdbusplus::message::variant_ns::get_if<std::string>(
                             &pcieDevProperties["Manufacturer"]);
                     property)
                 {
                     asyncResp->res.jsonValue["Manufacturer"] = *property;
                 }

                 if (std::string *property =
                         sdbusplus::message::variant_ns::get_if<std::string>(
                             &pcieDevProperties["DeviceType"]);
                     property)
                 {
                     asyncResp->res.jsonValue["DeviceType"] = *property;
                 }

                 asyncResp->res.jsonValue["PCIeFunctions"] = {
                     {"@odata.id", "/redfish/v1/Systems/system/PCIeDevices/" +
                                       device + "/PCIeFunctions"}};
             };
         std::string escapedPath = std::string(pciePath) + "/" + device;
         dbus::utility::escapePathForDbus(escapedPath);
         crow::connections::systemBus->async_method_call(
             std::move(getPCIeDeviceCallback), pcieService, escapedPath,
             "org.freedesktop.DBus.Properties", "GetAll", pcieDeviceInterface);
     }
 };

 class SystemPCIeFunctionCollection : public Node
 {
   public:
     template <typename CrowApp>
     SystemPCIeFunctionCollection(CrowApp &app) :
         Node(app, "/redfish/v1/Systems/system/PCIeDevices/<str>/PCIeFunctions/",
              std::string())
     {
         entityPrivileges = {
             {boost::beast::http::verb::get, {{"Login"}}},
             {boost::beast::http::verb::head, {{"Login"}}},
             {boost::beast::http::verb::patch, {{"ConfigureManager"}}},
             {boost::beast::http::verb::put, {{"ConfigureManager"}}},
             {boost::beast::http::verb::delete_, {{"ConfigureManager"}}},
             {boost::beast::http::verb::post, {{"ConfigureManager"}}}};
     }

   private:
     /**
      * Functions triggers appropriate requests on DBus
      */
     void doGet(crow::Response &res, const crow::Request &req,
                const std::vector<std::string> &params) override
     {
         std::shared_ptr<AsyncResp> asyncResp = std::make_shared<AsyncResp>(res);
         if (params.size() != 1)
         {
             messages::internalError(asyncResp->res);
             return;
         }
         const std::string &device = params[0];
         asyncResp->res.jsonValue = {
             {"@odata.type", "#PCIeFunctionCollection.PCIeFunctionCollection"},
             {"@odata.id", "/redfish/v1/Systems/system/PCIeDevices/" + device +
                               "/PCIeFunctions"},
             {"Name", "PCIe Function Collection"},
             {"Description",
              "Collection of PCIe Functions for PCIe Device " + device}};

         auto getPCIeDeviceCallback =
             [asyncResp,
              device](const boost::system::error_code ec,
                      boost::container::flat_map<
                          std::string, sdbusplus::message::variant<std::string>>
                          &pcieDevProperties) {
                 if (ec)
                 {
                     BMCWEB_LOG_DEBUG
                         << "failed to get PCIe Device properties ec: "
                         << ec.value() << ": " << ec.message();
                     if (ec.value() ==
                         boost::system::linux_error::bad_request_descriptor)
                     {
                         messages::resourceNotFound(asyncResp->res, "PCIeDevice",
                                                    device);
                     }
                     else
                     {
                         messages::internalError(asyncResp->res);
                     }
                     return;
                 }

                 nlohmann::json &pcieFunctionList =
                     asyncResp->res.jsonValue["Members"];
                 pcieFunctionList = nlohmann::json::array();
                 static constexpr const int maxPciFunctionNum = 8;
                 for (int functionNum = 0; functionNum < maxPciFunctionNum;
                      functionNum++)
                 {
                     // Check if this function exists by looking for a device ID
                     std::string devIDProperty =
                         "Function" + std::to_string(functionNum) + "DeviceId";
                     std::string *property =
                         sdbusplus::message::variant_ns::get_if<std::string>(
                             &pcieDevProperties[devIDProperty]);
                     if (property && !property->empty())
                     {
                         pcieFunctionList.push_back(
                             {{"@odata.id",
                               "/redfish/v1/Systems/system/PCIeDevices/" +
                                   device + "/PCIeFunctions/" +
                                   std::to_string(functionNum)}});
                     }
                 }
                 asyncResp->res.jsonValue["PCIeFunctions@odata.count"] =
                     pcieFunctionList.size();
             };
         std::string escapedPath = std::string(pciePath) + "/" + device;
         dbus::utility::escapePathForDbus(escapedPath);
         crow::connections::systemBus->async_method_call(
             std::move(getPCIeDeviceCallback), pcieService, escapedPath,
             "org.freedesktop.DBus.Properties", "GetAll", pcieDeviceInterface);
     }
 };

 class SystemPCIeFunction : public Node
 {
   public:
     SystemPCIeFunction(CrowApp &app) :
         Node(
             app,
             "/redfish/v1/Systems/system/PCIeDevices/<str>/PCIeFunctions/<str>/",
             std::string(), std::string())
     {
         entityPrivileges = {
             {boost::beast::http::verb::get, {{"Login"}}},
             {boost::beast::http::verb::head, {{"Login"}}},
             {boost::beast::http::verb::patch, {{"ConfigureManager"}}},
             {boost::beast::http::verb::put, {{"ConfigureManager"}}},
             {boost::beast::http::verb::delete_, {{"ConfigureManager"}}},
             {boost::beast::http::verb::post, {{"ConfigureManager"}}}};
     }

   private:
     void doGet(crow::Response &res, const crow::Request &req,
                const std::vector<std::string> &params) override
     {
         std::shared_ptr<AsyncResp> asyncResp = std::make_shared<AsyncResp>(res);
         if (params.size() != 2)
         {
             messages::internalError(asyncResp->res);
             return;
         }
         const std::string &device = params[0];
         const std::string &function = params[1];

         auto getPCIeDeviceCallback =
             [asyncResp, device, function](
                 const boost::system::error_code ec,
                 boost::container::flat_map<
                     std::string, sdbusplus::message::variant<std::string>>
                     &pcieDevProperties) {
                 if (ec)
                 {
                     BMCWEB_LOG_DEBUG
                         << "failed to get PCIe Device properties ec: "
                         << ec.value() << ": " << ec.message();
                     if (ec.value() ==
                         boost::system::linux_error::bad_request_descriptor)
                     {
                         messages::resourceNotFound(asyncResp->res, "PCIeDevice",
                                                    device);
                     }
                     else
                     {
                         messages::internalError(asyncResp->res);
                     }
                     return;
                 }

                 // Check if this function exists by looking for a device ID
                 std::string devIDProperty = "Function" + function + "DeviceId";
                 if (std::string *property =
                         sdbusplus::message::variant_ns::get_if<std::string>(
                             &pcieDevProperties[devIDProperty]);
                     property && property->empty())
                 {
                     messages::resourceNotFound(asyncResp->res, "PCIeFunction",
                                                function);
                     return;
                 }

                 asyncResp->res.jsonValue = {
                     {"@odata.type", "#PCIeFunction.v1_2_0.PCIeFunction"},
                     {"@odata.id", "/redfish/v1/Systems/system/PCIeDevices/" +
                                       device + "/PCIeFunctions/" + function},
                     {"Name", "PCIe Function"},
                     {"Id", function},
                     {"FunctionId", std::stoi(function)},
                     {"Links",
                      {{"PCIeDevice",
                        {{"@odata.id",
                          "/redfish/v1/Systems/system/PCIeDevices/" +
                              device}}}}}};

                 if (std::string *property =
                         sdbusplus::message::variant_ns::get_if<std::string>(
                             &pcieDevProperties["Function" + function +
                                                "DeviceId"]);
                     property)
                 {
                     asyncResp->res.jsonValue["DeviceId"] = *property;
                 }

                 if (std::string *property =
                         sdbusplus::message::variant_ns::get_if<std::string>(
                             &pcieDevProperties["Function" + function +
                                                "VendorId"]);
                     property)
                 {
                     asyncResp->res.jsonValue["VendorId"] = *property;
                 }

                 if (std::string *property =
                         sdbusplus::message::variant_ns::get_if<std::string>(
                             &pcieDevProperties["Function" + function +
                                                "FunctionType"]);
                     property)
                 {
                     asyncResp->res.jsonValue["FunctionType"] = *property;
                 }

                 if (std::string *property =
                         sdbusplus::message::variant_ns::get_if<std::string>(
                             &pcieDevProperties["Function" + function +
                                                "DeviceClass"]);
                     property)
                 {
                     asyncResp->res.jsonValue["DeviceClass"] = *property;
                 }

                 if (std::string *property =
                         sdbusplus::message::variant_ns::get_if<std::string>(
                             &pcieDevProperties["Function" + function +
                                                "ClassCode"]);
                     property)
                 {
                     asyncResp->res.jsonValue["ClassCode"] = *property;
                 }

                 if (std::string *property =
                         sdbusplus::message::variant_ns::get_if<std::string>(
                             &pcieDevProperties["Function" + function +
                                                "RevisionId"]);
                     property)
                 {
                     asyncResp->res.jsonValue["RevisionId"] = *property;
                 }

                 if (std::string *property =
                         sdbusplus::message::variant_ns::get_if<std::string>(
                             &pcieDevProperties["Function" + function +
                                                "SubsystemId"]);
                     property)
                 {
                     asyncResp->res.jsonValue["SubsystemId"] = *property;
                 }

                 if (std::string *property =
                         sdbusplus::message::variant_ns::get_if<std::string>(
                             &pcieDevProperties["Function" + function +
                                                "SubsystemVendorId"]);
                     property)
                 {
                     asyncResp->res.jsonValue["SubsystemVendorId"] = *property;
                 }
             };
         std::string escapedPath = std::string(pciePath) + "/" + device;
         dbus::utility::escapePathForDbus(escapedPath);
         crow::connections::systemBus->async_method_call(
             std::move(getPCIeDeviceCallback), pcieService, escapedPath,
             "org.freedesktop.DBus.Properties", "GetAll", pcieDeviceInterface);
     }
 };

 } // namespace redfish
	/*
	// Copyright (c) 2018 Intel Corporation
	//
	// Licensed under the Apache License, Version 2.0 (the "License");
	// you may not use this file except in compliance with the License.
	// You may obtain a copy of the License at
	//
	// http://www.apache.org/licenses/LICENSE-2.0
	//
	// Unless required by applicable law or agreed to in writing, software
	// distributed under the License is distributed on an "AS IS" BASIS,
	// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	// See the License for the specific language governing permissions and
	// limitations under the License.
	*/

	#pragma once

	#include "node.hpp"

	#include <boost/system/linux_error.hpp>

	namespace redfish
	{

	static constexpr char const *pcieService = "xyz.openbmc_project.PCIe";
	static constexpr char const *pciePath = "/xyz/openbmc_project/PCIe";
	static constexpr char const *pcieDeviceInterface =
	"xyz.openbmc_project.PCIe.Device";

	static inline void getPCIeDeviceList(std::shared_ptr<AsyncResp> asyncResp,
	const std::string &name)
	{
	auto getPCIeMapCallback = [asyncResp, name](
	const boost::system::error_code ec,
	std::vector<std::string> &pcieDevicePaths) {
	if (ec)
	{
	BMCWEB_LOG_DEBUG << "no PCIe device paths found ec: "
	<< ec.message();
	// Not an error, system just doesn't have PCIe info
	return;
	}
	nlohmann::json &pcieDeviceList = asyncResp->res.jsonValue[name];
	pcieDeviceList = nlohmann::json::array();
	for (const std::string &pcieDevicePath : pcieDevicePaths)
	{
	size_t devStart = pcieDevicePath.rfind("/");
	if (devStart == std::string::npos)
	{
	continue;
	}

	std::string devName = pcieDevicePath.substr(devStart + 1);
	if (devName.empty())
	{
	continue;
	}
	pcieDeviceList.push_back(
	{{"@odata.id",
	"/redfish/v1/Systems/system/PCIeDevices/" + devName}});
	}
	asyncResp->res.jsonValue[name + "@odata.count"] = pcieDeviceList.size();
	};
	crow::connections::systemBus->async_method_call(
	std::move(getPCIeMapCallback), "xyz.openbmc_project.ObjectMapper",
	"/xyz/openbmc_project/object_mapper",
	"xyz.openbmc_project.ObjectMapper", "GetSubTreePaths",
	std::string(pciePath) + "/", 1, std::array<std::string, 0>());
	}

	class SystemPCIeDeviceCollection : public Node
	{
	public:
	template <typename CrowApp>
	SystemPCIeDeviceCollection(CrowApp &app) :
	Node(app, "/redfish/v1/Systems/system/PCIeDevices/")
	{
	entityPrivileges = {
	{boost::beast::http::verb::get, {{"Login"}}},
	{boost::beast::http::verb::head, {{"Login"}}},
	{boost::beast::http::verb::patch, {{"ConfigureManager"}}},
	{boost::beast::http::verb::put, {{"ConfigureManager"}}},
	{boost::beast::http::verb::delete_, {{"ConfigureManager"}}},
	{boost::beast::http::verb::post, {{"ConfigureManager"}}}};
	}

	private:
	/**
	* Functions triggers appropriate requests on DBus
	*/
	void doGet(crow::Response &res, const crow::Request &req,
	const std::vector<std::string> &params) override
	{
	std::shared_ptr<AsyncResp> asyncResp = std::make_shared<AsyncResp>(res);
	asyncResp->res.jsonValue = {
	{"@odata.type", "#PCIeDeviceCollection.PCIeDeviceCollection"},
	{"@odata.id", "/redfish/v1/Systems/system/PCIeDevices"},
	{"Name", "PCIe Device Collection"},
	{"Description", "Collection of PCIe Devices"},
	{"Members", nlohmann::json::array()},
	{"Members@odata.count", 0}};
	getPCIeDeviceList(asyncResp, "Members");
	}
	};

	class SystemPCIeDevice : public Node
	{
	public:
	SystemPCIeDevice(CrowApp &app) :
	Node(app, "/redfish/v1/Systems/system/PCIeDevices/<str>/",
	std::string())
	{
	entityPrivileges = {
	{boost::beast::http::verb::get, {{"Login"}}},
	{boost::beast::http::verb::head, {{"Login"}}},
	{boost::beast::http::verb::patch, {{"ConfigureManager"}}},
	{boost::beast::http::verb::put, {{"ConfigureManager"}}},
	{boost::beast::http::verb::delete_, {{"ConfigureManager"}}},
	{boost::beast::http::verb::post, {{"ConfigureManager"}}}};
	}

	private:
	void doGet(crow::Response &res, const crow::Request &req,
	const std::vector<std::string> &params) override
	{
	std::shared_ptr<AsyncResp> asyncResp = std::make_shared<AsyncResp>(res);
	if (params.size() != 1)
	{
	messages::internalError(asyncResp->res);
	return;
	}
	const std::string &device = params[0];

	auto getPCIeDeviceCallback =
	[asyncResp,
	device](const boost::system::error_code ec,
	boost::container::flat_map<
	std::string, sdbusplus::message::variant<std::string>>
	&pcieDevProperties) {
	if (ec)
	{
	BMCWEB_LOG_DEBUG
	<< "failed to get PCIe Device properties ec: "
	<< ec.value() << ": " << ec.message();
	if (ec.value() ==
	boost::system::linux_error::bad_request_descriptor)
	{
	messages::resourceNotFound(asyncResp->res, "PCIeDevice",
	device);
	}
	else
	{
	messages::internalError(asyncResp->res);
	}
	return;
	}

	asyncResp->res.jsonValue = {
	{"@odata.type", "#PCIeDevice.v1_4_0.PCIeDevice"},
	{"@odata.id",
	"/redfish/v1/Systems/system/PCIeDevices/" + device},
	{"Name", "PCIe Device"},
	{"Id", device}};

	if (std::string *property =
	sdbusplus::message::variant_ns::get_if<std::string>(
	&pcieDevProperties["Manufacturer"]);
	property)
	{
	asyncResp->res.jsonValue["Manufacturer"] = *property;
	}

	if (std::string *property =
	sdbusplus::message::variant_ns::get_if<std::string>(
	&pcieDevProperties["DeviceType"]);
	property)
	{
	asyncResp->res.jsonValue["DeviceType"] = *property;
	}

	asyncResp->res.jsonValue["PCIeFunctions"] = {
	{"@odata.id", "/redfish/v1/Systems/system/PCIeDevices/" +
	device + "/PCIeFunctions"}};
	};
	std::string escapedPath = std::string(pciePath) + "/" + device;
	dbus::utility::escapePathForDbus(escapedPath);
	crow::connections::systemBus->async_method_call(
	std::move(getPCIeDeviceCallback), pcieService, escapedPath,
	"org.freedesktop.DBus.Properties", "GetAll", pcieDeviceInterface);
	}
	};

	class SystemPCIeFunctionCollection : public Node
	{
	public:
	template <typename CrowApp>
	SystemPCIeFunctionCollection(CrowApp &app) :
	Node(app, "/redfish/v1/Systems/system/PCIeDevices/<str>/PCIeFunctions/",
	std::string())
	{
	entityPrivileges = {
	{boost::beast::http::verb::get, {{"Login"}}},
	{boost::beast::http::verb::head, {{"Login"}}},
	{boost::beast::http::verb::patch, {{"ConfigureManager"}}},
	{boost::beast::http::verb::put, {{"ConfigureManager"}}},
	{boost::beast::http::verb::delete_, {{"ConfigureManager"}}},
	{boost::beast::http::verb::post, {{"ConfigureManager"}}}};
	}

	private:
	/**
	* Functions triggers appropriate requests on DBus
	*/
	void doGet(crow::Response &res, const crow::Request &req,
	const std::vector<std::string> &params) override
	{
	std::shared_ptr<AsyncResp> asyncResp = std::make_shared<AsyncResp>(res);
	if (params.size() != 1)
	{
	messages::internalError(asyncResp->res);
	return;
	}
	const std::string &device = params[0];
	asyncResp->res.jsonValue = {
	{"@odata.type", "#PCIeFunctionCollection.PCIeFunctionCollection"},
	{"@odata.id", "/redfish/v1/Systems/system/PCIeDevices/" + device +
	"/PCIeFunctions"},
	{"Name", "PCIe Function Collection"},
	{"Description",
	"Collection of PCIe Functions for PCIe Device " + device}};

	auto getPCIeDeviceCallback =
	[asyncResp,
	device](const boost::system::error_code ec,
	boost::container::flat_map<
	std::string, sdbusplus::message::variant<std::string>>
	&pcieDevProperties) {
	if (ec)
	{
	BMCWEB_LOG_DEBUG
	<< "failed to get PCIe Device properties ec: "
	<< ec.value() << ": " << ec.message();
	if (ec.value() ==
	boost::system::linux_error::bad_request_descriptor)
	{
	messages::resourceNotFound(asyncResp->res, "PCIeDevice",
	device);
	}
	else
	{
	messages::internalError(asyncResp->res);
	}
	return;
	}

	nlohmann::json &pcieFunctionList =
	asyncResp->res.jsonValue["Members"];
	pcieFunctionList = nlohmann::json::array();
	static constexpr const int maxPciFunctionNum = 8;
	for (int functionNum = 0; functionNum < maxPciFunctionNum;
	functionNum++)
	{
	// Check if this function exists by looking for a device ID
	std::string devIDProperty =
	"Function" + std::to_string(functionNum) + "DeviceId";
	std::string *property =
	sdbusplus::message::variant_ns::get_if<std::string>(
	&pcieDevProperties[devIDProperty]);
	if (property && !property->empty())
	{
	pcieFunctionList.push_back(
	{{"@odata.id",
	"/redfish/v1/Systems/system/PCIeDevices/" +
	device + "/PCIeFunctions/" +
	std::to_string(functionNum)}});
	}
	}
	asyncResp->res.jsonValue["PCIeFunctions@odata.count"] =
	pcieFunctionList.size();
	};
	std::string escapedPath = std::string(pciePath) + "/" + device;
	dbus::utility::escapePathForDbus(escapedPath);
	crow::connections::systemBus->async_method_call(
	std::move(getPCIeDeviceCallback), pcieService, escapedPath,
	"org.freedesktop.DBus.Properties", "GetAll", pcieDeviceInterface);
	}
	};

	class SystemPCIeFunction : public Node
	{
	public:
	SystemPCIeFunction(CrowApp &app) :
	Node(
	app,
	"/redfish/v1/Systems/system/PCIeDevices/<str>/PCIeFunctions/<str>/",
	std::string(), std::string())
	{
	entityPrivileges = {
	{boost::beast::http::verb::get, {{"Login"}}},
	{boost::beast::http::verb::head, {{"Login"}}},
	{boost::beast::http::verb::patch, {{"ConfigureManager"}}},
	{boost::beast::http::verb::put, {{"ConfigureManager"}}},
	{boost::beast::http::verb::delete_, {{"ConfigureManager"}}},
	{boost::beast::http::verb::post, {{"ConfigureManager"}}}};
	}

	private:
	void doGet(crow::Response &res, const crow::Request &req,
	const std::vector<std::string> &params) override
	{
	std::shared_ptr<AsyncResp> asyncResp = std::make_shared<AsyncResp>(res);
	if (params.size() != 2)
	{
	messages::internalError(asyncResp->res);
	return;
	}
	const std::string &device = params[0];
	const std::string &function = params[1];

	auto getPCIeDeviceCallback =
	[asyncResp, device, function](
	const boost::system::error_code ec,
	boost::container::flat_map<
	std::string, sdbusplus::message::variant<std::string>>
	&pcieDevProperties) {
	if (ec)
	{
	BMCWEB_LOG_DEBUG
	<< "failed to get PCIe Device properties ec: "
	<< ec.value() << ": " << ec.message();
	if (ec.value() ==
	boost::system::linux_error::bad_request_descriptor)
	{
	messages::resourceNotFound(asyncResp->res, "PCIeDevice",
	device);
	}
	else
	{
	messages::internalError(asyncResp->res);
	}
	return;
	}

	// Check if this function exists by looking for a device ID
	std::string devIDProperty = "Function" + function + "DeviceId";
	if (std::string *property =
	sdbusplus::message::variant_ns::get_if<std::string>(
	&pcieDevProperties[devIDProperty]);
	property && property->empty())
	{
	messages::resourceNotFound(asyncResp->res, "PCIeFunction",
	function);
	return;
	}

	asyncResp->res.jsonValue = {
	{"@odata.type", "#PCIeFunction.v1_2_0.PCIeFunction"},
	{"@odata.id", "/redfish/v1/Systems/system/PCIeDevices/" +
	device + "/PCIeFunctions/" + function},
	{"Name", "PCIe Function"},
	{"Id", function},
	{"FunctionId", std::stoi(function)},
	{"Links",
	{{"PCIeDevice",
	{{"@odata.id",
	"/redfish/v1/Systems/system/PCIeDevices/" +
	device}}}}}};

	if (std::string *property =
	sdbusplus::message::variant_ns::get_if<std::string>(
	&pcieDevProperties["Function" + function +
	"DeviceId"]);
	property)
	{
	asyncResp->res.jsonValue["DeviceId"] = *property;
	}

	if (std::string *property =
	sdbusplus::message::variant_ns::get_if<std::string>(
	&pcieDevProperties["Function" + function +
	"VendorId"]);
	property)
	{
	asyncResp->res.jsonValue["VendorId"] = *property;
	}

	if (std::string *property =
	sdbusplus::message::variant_ns::get_if<std::string>(
	&pcieDevProperties["Function" + function +
	"FunctionType"]);
	property)
	{
	asyncResp->res.jsonValue["FunctionType"] = *property;
	}

	if (std::string *property =
	sdbusplus::message::variant_ns::get_if<std::string>(
	&pcieDevProperties["Function" + function +
	"DeviceClass"]);
	property)
	{
	asyncResp->res.jsonValue["DeviceClass"] = *property;
	}

	if (std::string *property =
	sdbusplus::message::variant_ns::get_if<std::string>(
	&pcieDevProperties["Function" + function +
	"ClassCode"]);
	property)
	{
	asyncResp->res.jsonValue["ClassCode"] = *property;
	}

	if (std::string *property =
	sdbusplus::message::variant_ns::get_if<std::string>(
	&pcieDevProperties["Function" + function +
	"RevisionId"]);
	property)
	{
	asyncResp->res.jsonValue["RevisionId"] = *property;
	}

	if (std::string *property =
	sdbusplus::message::variant_ns::get_if<std::string>(
	&pcieDevProperties["Function" + function +
	"SubsystemId"]);
	property)
	{
	asyncResp->res.jsonValue["SubsystemId"] = *property;
	}

	if (std::string *property =
	sdbusplus::message::variant_ns::get_if<std::string>(
	&pcieDevProperties["Function" + function +
	"SubsystemVendorId"]);
	property)
	{
	asyncResp->res.jsonValue["SubsystemVendorId"] = *property;
	}
	};
	std::string escapedPath = std::string(pciePath) + "/" + device;
	dbus::utility::escapePathForDbus(escapedPath);
	crow::connections::systemBus->async_method_call(
	std::move(getPCIeDeviceCallback), pcieService, escapedPath,
	"org.freedesktop.DBus.Properties", "GetAll", pcieDeviceInterface);
	}
	};

	} // namespace redfish