On checkstop request dump and transition host
After checkstop analyses completes attention handler will request a dump
and the transition the host. The type of dump requested is dependent on
the results of the isolator.
Signed-off-by: Ben Tyner <ben.tyner@ibm.com>
Change-Id: I1116be8f8d045a4916d3321f461c22345fecf274
diff --git a/attn/attn_dump.cpp b/attn/attn_dump.cpp
new file mode 100644
index 0000000..95976be
--- /dev/null
+++ b/attn/attn_dump.cpp
@@ -0,0 +1,133 @@
+#include <attn/attn_dbus.hpp>
+#include <attn/attn_dump.hpp>
+#include <attn/attn_logging.hpp>
+#include <sdbusplus/bus.hpp>
+#include <sdbusplus/exception.hpp>
+
+namespace attn
+{
+
+/**
+ * Callback for dump request properties change signal monitor
+ *
+ * @param[in] i_msg Dbus message from the dbus match infrastructure
+ * @param[in] i_path The object path we are monitoring
+ * @param[out] o_inProgress Used to break out of our dbus wait loop
+ * @reutn Always non-zero indicating no error, no cascading callbacks
+ */
+uint dumpStatusChanged(sdbusplus::message::message& i_msg, std::string i_path,
+ bool& o_inProgress)
+{
+ // reply (msg) will be a property change message
+ std::string interface;
+ std::map<std::string, std::variant<std::string, uint8_t>> property;
+ i_msg.read(interface, property);
+
+ // looking for property Status changes
+ std::string propertyType = "Status";
+ auto dumpStatus = property.find(propertyType);
+
+ if (dumpStatus != property.end())
+ {
+ const std::string* status =
+ std::get_if<std::string>(&(dumpStatus->second));
+
+ if ((nullptr != status) && ("xyz.openbmc_project.Common.Progress."
+ "OperationStatus.InProgress" != *status))
+ {
+ // dump is done, trace some info and change in progress flag
+ trace<level::INFO>(i_path.c_str());
+ trace<level::INFO>((*status).c_str());
+ o_inProgress = false;
+ }
+ }
+
+ return 1; // non-negative return code for successful callback
+}
+
+/**
+ * Register a callback for dump progress status changes
+ *
+ * @param[in] i_path The object path of the dump to monitor
+ */
+void monitorDump(const std::string& i_path)
+{
+ bool inProgress = true; // callback will update this
+
+ // setup the signal match rules and callback
+ std::string matchInterface = "xyz.openbmc_project.Common.Progress";
+ auto bus = sdbusplus::bus::new_system();
+
+ std::unique_ptr<sdbusplus::bus::match_t> match =
+ std::make_unique<sdbusplus::bus::match_t>(
+ bus,
+ sdbusplus::bus::match::rules::propertiesChanged(
+ i_path.c_str(), matchInterface.c_str()),
+ [&](auto& msg) {
+ return dumpStatusChanged(msg, i_path, inProgress);
+ });
+
+ // wait for dump status to be completed (complete == true)
+ trace<level::INFO>("dump requested (waiting)");
+ while (true == inProgress)
+ {
+ bus.wait(0);
+ bus.process_discard();
+ }
+ trace<level::INFO>("dump completed");
+}
+
+/** Request a dump from the dump manager */
+void requestDump(const DumpParameters& i_dumpParameters)
+{
+ constexpr auto path = "/org/openpower/dump";
+ constexpr auto interface = "xyz.openbmc_project.Dump.Create";
+ constexpr auto function = "CreateDump";
+
+ sdbusplus::message::message method;
+
+ if (0 == dbusMethod(path, interface, function, method))
+ {
+ try
+ {
+ // dbus call arguments
+ std::map<std::string, std::variant<std::string, uint64_t>>
+ createParams;
+ createParams["com.ibm.Dump.Create.CreateParameters.ErrorLogId"] =
+ uint64_t(i_dumpParameters.logId);
+ if (DumpType::Hostboot == i_dumpParameters.dumpType)
+ {
+ createParams["com.ibm.Dump.Create.CreateParameters.DumpType"] =
+ "com.ibm.Dump.Create.DumpType.Hostboot";
+ }
+ else if (DumpType::Hardware == i_dumpParameters.dumpType)
+ {
+ createParams["com.ibm.Dump.Create.CreateParameters.DumpType"] =
+ "com.ibm.Dump.Create.DumpType.Hardware";
+ createParams
+ ["com.ibm.Dump.Create.CreateParameters.FailingUnitId"] =
+ i_dumpParameters.unitId;
+ }
+ method.append(createParams);
+
+ // using system dbus
+ auto bus = sdbusplus::bus::new_system();
+ auto response = bus.call(method);
+
+ // reply will be type dbus::ObjectPath
+ sdbusplus::message::object_path reply;
+ response.read(reply);
+
+ // monitor dump progress
+ monitorDump(reply);
+ }
+ catch (const sdbusplus::exception::SdBusError& e)
+ {
+ trace<level::ERROR>("requestDump exception");
+ std::string traceMsg = std::string(e.what(), maxTraceLen);
+ trace<level::ERROR>(traceMsg.c_str());
+ }
+ }
+}
+
+} // namespace attn