commit 9fc7912818a9fb62af1b7dfca6bd98a5f5377ea4
author Thu Nguyen <thu@os.amperecomputing.com> Tue Sep 10 10:15:01 2024 +0000
committer Thu Nguyen <thu@os.amperecomputing.com> Mon Sep 30 08:08:58 2024 +0000
tree 7df787db278fdd6960522d7f6c5ef6ae359be3c6
parent 22aed8fb4fe23f8ec46a2208c568240e8c9e6f02

platform-mc: Support CPER Event handler

Handle CPER event(0x07) which is defined in `Table 11 - PLDM Event
Type` and section `16.17 eventData format for CPEREvent` in DSP0248
v1.3.0.

The code supports:
1. Handle the PLDM event which has eventClass as CPEREvent (0x07).
2. Store the CPER data in PLDM CPER event to file at `/var/cper/`.
3. Call `CreateDump` method of `xyz.openbmc_project.Dump.Manager` D-Bus
service to create dump fault log.
4. The user can find the dump fault logs in Redfish FaultLog entries
thru URL `/redfish/v1/Managers/bmc/LogServices/FaultLog/Entries`. Each
CPER entry includes the URL to download the created CPER data file
`/redfish/v1/Managers/bmc/LogServices/FaultLog/Entries/<id>/attachment`.
5. The user can use `cper-parser` in `libcper` to parse the CPER data in
the attached file.

Signed-off-by: Thu Nguyen <thu@os.amperecomputing.com>
Change-Id: I85c53933183178c6b5acdfc12c805e8a4cf1ca2a

platform-mc/manager.hpp

diff --git a/platform-mc/manager.hpp b/platform-mc/manager.hpp
index a4fd466..c499f88 100644
--- a/platform-mc/manager.hpp
+++ b/platform-mc/manager.hpp
@@ -101,7 +101,7 @@
         sensorManager.stopPolling(tid);
     }
 
-    /** @brief Sensor event handler funtion
+    /** @brief Sensor event handler function
      *
      *  @param[in] request - Event message
      *  @param[in] payloadLength - Event message payload size
@@ -118,8 +118,32 @@
         auto eventData = reinterpret_cast<const uint8_t*>(request->payload) +
                          eventDataOffset;
         auto eventDataSize = payloadLength - eventDataOffset;
-        eventManager.handlePlatformEvent(tid, 0x00, PLDM_SENSOR_EVENT,
-                                         eventData, eventDataSize);
+        eventManager.handlePlatformEvent(tid, PLDM_PLATFORM_EVENT_ID_NULL,
+                                         PLDM_SENSOR_EVENT, eventData,
+                                         eventDataSize);
+        return PLDM_SUCCESS;
+    }
+
+    /** @brief CPER event handler function
+     *
+     *  @param[in] request - Event message
+     *  @param[in] payloadLength - Event message payload size
+     *  @param[in] tid - Terminus ID
+     *  @param[in] eventDataOffset - Event data offset
+     *
+     *  @return PLDM error code: PLDM_SUCCESS when there is no error in handling
+     *          the event
+     */
+    int handleCperEvent(const pldm_msg* request, size_t payloadLength,
+                        uint8_t /* formatVersion */, uint8_t tid,
+                        size_t eventDataOffset)
+    {
+        auto eventData =
+            const_cast<const uint8_t*>(request->payload) + eventDataOffset;
+        auto eventDataSize = payloadLength - eventDataOffset;
+        eventManager.handlePlatformEvent(tid, PLDM_PLATFORM_EVENT_ID_NULL,
+                                         PLDM_CPER_EVENT, eventData,
+                                         eventDataSize);
         return PLDM_SUCCESS;
     }