Support Clear Message Flags command
This is common IPMI command, but Ampere doesn't support all features in
this command. So we implement this command in Ampere OEM repository.
Ampere's Altra platform only supports clear watchdog pre-timeout interrupt flag.
Signed-off-by: Dung Cao <dung@os.amperecomputing.com>
Change-Id: Ib2996258ac45e71c2d2ae67358d6fc2ba771578d
diff --git a/src/bridgingcommands.cpp b/src/bridgingcommands.cpp
new file mode 100644
index 0000000..13fda3f
--- /dev/null
+++ b/src/bridgingcommands.cpp
@@ -0,0 +1,129 @@
+/*
+ * Copyright (c) 2018-2021 Ampere Computing LLC
+ *
+ * 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.
+ */
+
+#include <bridgingcommands.hpp>
+#include <ipmid/api.hpp>
+#include <ipmid/utils.hpp>
+#include <phosphor-logging/log.hpp>
+#include <sdbusplus/bus.hpp>
+#include <sdbusplus/bus/match.hpp>
+#include <sdbusplus/message.hpp>
+#include <user_channel/channel_layer.hpp>
+
+#include <bitset>
+#include <cstring>
+#include <vector>
+
+static Bridging bridging;
+static bool eventMessageBufferFlag = false;
+
+void Bridging::clearResponseQueue()
+{
+ responseQueue.clear();
+}
+
+void Bridging::insertMessageInQueue(IpmbResponse msg)
+{
+ responseQueue.insert(responseQueue.end(), std::move(msg));
+}
+
+void Bridging::eraseMessageFromQueue()
+{
+ responseQueue.erase(responseQueue.begin());
+}
+
+IpmbResponse Bridging::getMessageFromQueue()
+{
+ return responseQueue.front();
+}
+
+std::size_t Bridging::getResponseQueueSize()
+{
+ return responseQueue.size();
+}
+
+/** @brief This command is used to flush unread data from the receive
+ * message queue
+ * @param receiveMessage - clear receive message queue
+ * @param eventMsgBufFull - clear event message buffer full
+ * @param reserved2 - reserved bit
+ * @param watchdogTimeout - clear watchdog pre-timeout interrupt flag
+ * @param reserved1 - reserved bit
+ * @param oem0 - clear OEM 0 data
+ * @param oem1 - clear OEM 1 data
+ * @param oem2 - clear OEM 2 data
+
+ * @return IPMI completion code on success
+ */
+ipmi::RspType<> ipmiAppClearMessageFlags(ipmi::Context::ptr ctx,
+ bool receiveMessage,
+ bool eventMsgBufFull, bool reserved2,
+ bool watchdogTimeout, bool reserved1,
+ bool oem0, bool oem1, bool oem2)
+{
+ ipmi::ChannelInfo chInfo;
+
+ try
+ {
+ getChannelInfo(ctx->channel, chInfo);
+ }
+ catch (sdbusplus::exception_t& e)
+ {
+ phosphor::logging::log<phosphor::logging::level::ERR>(
+ "ipmiAppClearMessageFlags: Failed to get Channel Info",
+ phosphor::logging::entry("MSG: %s", e.description()));
+ return ipmi::responseUnspecifiedError();
+ }
+ if (chInfo.mediumType !=
+ static_cast<uint8_t>(ipmi::EChannelMediumType::smbusV20))
+ {
+ phosphor::logging::log<phosphor::logging::level::ERR>(
+ "ipmiAppClearMessageFlags: Error - supported only in SSIF "
+ "interface");
+ return ipmi::responseCommandNotAvailable();
+ }
+
+ if (reserved1 || reserved2)
+ {
+ return ipmi::responseInvalidFieldRequest();
+ }
+
+ if (receiveMessage)
+ {
+ bridging.clearResponseQueue();
+ }
+
+ if (eventMessageBufferFlag != true && eventMsgBufFull == true)
+ {
+ eventMessageBufferFlag = true;
+ }
+
+ // As phosphor-watchdog has not supported PreTimeoutInterruptFlags yet,
+ // so do nothing on clear watchdog pre-timeout interrupt flags.
+
+ return ipmi::responseSuccess();
+}
+
+void registerBridingFunctions() __attribute__((constructor));
+void registerBridingFunctions()
+{
+ // <Clear Message Flags Command>
+ ipmi::registerHandler(ipmi::prioOemBase, ipmi::netFnApp,
+ ipmi::app::cmdClearMessageFlags,
+ ipmi::Privilege::User, ipmiAppClearMessageFlags);
+
+ return;
+}