PEL: Add Repo API to update transmission states
Provided APIs for the Repository class to update the host and HMC
transmission states on a PEL it contains. It saves the updated PEL data
in the filesystem.
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Change-Id: Iadbc589ee85d4408339e1171c36b8324910f4f0a
diff --git a/extensions/openpower-pels/repository.cpp b/extensions/openpower-pels/repository.cpp
index b15fd38..f90a628 100644
--- a/extensions/openpower-pels/repository.cpp
+++ b/extensions/openpower-pels/repository.cpp
@@ -279,5 +279,81 @@
return std::nullopt;
}
+void Repository::setPELHostTransState(uint32_t pelID, TransmissionState state)
+{
+ LogID id{LogID::Pel{pelID}};
+ auto attr = std::find_if(_pelAttributes.begin(), _pelAttributes.end(),
+ [&id](const auto& a) { return a.first == id; });
+
+ if ((attr != _pelAttributes.end()) && (attr->second.hostState != state))
+ {
+ PELUpdateFunc func = [state](PEL& pel) {
+ pel.setHostTransmissionState(state);
+ };
+
+ try
+ {
+ updatePEL(attr->second.path, func);
+
+ attr->second.hostState = state;
+ }
+ catch (std::exception& e)
+ {
+ log<level::ERR>("Unable to update PEL host transmission state",
+ entry("PATH=%s", attr->second.path.c_str()),
+ entry("ERROR=%s", e.what()));
+ }
+ }
+}
+
+void Repository::setPELHMCTransState(uint32_t pelID, TransmissionState state)
+{
+ LogID id{LogID::Pel{pelID}};
+ auto attr = std::find_if(_pelAttributes.begin(), _pelAttributes.end(),
+ [&id](const auto& a) { return a.first == id; });
+
+ if ((attr != _pelAttributes.end()) && (attr->second.hmcState != state))
+ {
+ PELUpdateFunc func = [state](PEL& pel) {
+ pel.setHMCTransmissionState(state);
+ };
+
+ try
+ {
+ updatePEL(attr->second.path, func);
+
+ attr->second.hmcState = state;
+ }
+ catch (std::exception& e)
+ {
+ log<level::ERR>("Unable to update PEL HMC transmission state",
+ entry("PATH=%s", attr->second.path.c_str()),
+ entry("ERROR=%s", e.what()));
+ }
+ }
+}
+
+void Repository::updatePEL(const fs::path& path, PELUpdateFunc updateFunc)
+{
+ std::ifstream file{path};
+ std::vector<uint8_t> data{std::istreambuf_iterator<char>(file),
+ std::istreambuf_iterator<char>()};
+ file.close();
+
+ PEL pel{data};
+
+ if (pel.valid())
+ {
+ updateFunc(pel);
+
+ write(pel, path);
+ }
+ else
+ {
+ throw std::runtime_error(
+ "Unable to read a valid PEL when trying to update it");
+ }
+}
+
} // namespace pels
} // namespace openpower
diff --git a/extensions/openpower-pels/repository.hpp b/extensions/openpower-pels/repository.hpp
index 70e8e61..b6ac545 100644
--- a/extensions/openpower-pels/repository.hpp
+++ b/extensions/openpower-pels/repository.hpp
@@ -261,7 +261,42 @@
std::optional<std::reference_wrapper<const PELAttributes>>
getPELAttributes(const LogID& id) const;
+ /**
+ * @brief Sets the host transmission state on a PEL file
+ *
+ * Writes the host transmission state field in the User Header
+ * section in the PEL data specified by the ID.
+ *
+ * @param[in] pelID - The PEL ID
+ * @param[in] state - The state to write
+ */
+ void setPELHostTransState(uint32_t pelID, TransmissionState state);
+
+ /**
+ * @brief Sets the HMC transmission state on a PEL file
+ *
+ * Writes the HMC transmission state field in the User Header
+ * section in the PEL data specified by the ID.
+ *
+ * @param[in] pelID - The PEL ID
+ * @param[in] state - The state to write
+ */
+ void setPELHMCTransState(uint32_t pelID, TransmissionState state);
+
private:
+ using PELUpdateFunc = std::function<void(PEL&)>;
+
+ /**
+ * @brief Lets a function modify a PEL and saves the results
+ *
+ * Runs updateFunc (a void(PEL&) function) on the PEL data
+ * on the file specified, and writes the results back to the file.
+ *
+ * @param[in] path - The file path to use
+ * @param[in] updateFunc - The function to run to update the PEL.
+ */
+ void updatePEL(const std::filesystem::path& path, PELUpdateFunc updateFunc);
+
/**
* @brief Finds an entry in the _pelAttributes map.
*