SBE PSU timeout during MBOX init causes task crash/HB TI

- Handling a PSU DD Timeout involves invoking the SBE Retry
  handler, which can cause crashes (FAPI library not yet
  initialized) if the timeout happens very early in the IPL.
- Added a check if the FAPI Library was loaded, and added a
  call to handle the early timeout later in the IPL.

Change-Id: I199cf0302af916b3f6ffec598ccab04c031e48e6
RTC:433868
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/61730
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Disable-CI: Nicholas E. Bofferding <bofferdn@us.ibm.com>
Reviewed-by: Prachi Gupta <pragupta@us.ibm.com>
Reviewed-by: William G. Hoffa <wghoffa@us.ibm.com>

1 files changed, 32 insertions, 0 deletions

diff --git a/src/include/usr/sbeio/sbe_psudd.H b/src/include/usr/sbeio/sbe_psudd.H
index ae72375ba..03b07951c 100644
--- a/src/include/usr/sbeio/sbe_psudd.H
+++ b/src/include/usr/sbeio/sbe_psudd.H
@@ -642,6 +642,28 @@ class SbePsu
                                     uint8_t             i_reqMsgs,
                                     uint8_t             i_rspMsgs);
 
+        /**
+         * @brief save information from an "early" error
+         *
+         * If an error occurs before the fapi2 library is loaded, this
+         * function will record the error state so it can be reported later.
+         *
+         *
+         * @param[in]  i_plid   Program log id for the error
+         * @param[in]  i_target Proc target for PSU Request that caused an error
+         */
+        void saveEarlyError(uint32_t i_plid,TARGETING::TargetHandle_t i_target);
+
+        /**
+         * @brief Did an error occur before the fapi2 library was loaded?
+         */
+        bool earlyError() {return iv_earlyErrorOccurred;}
+
+        /**
+         * @brief If an "early" error was detected, then record and process it.
+         */
+        errlHndl_t processEarlyError();
+
     protected:
 
         /**
@@ -676,6 +698,16 @@ class SbePsu
         std::map<TARGETING::Target *, void *> iv_ffdcPackageBuffer;
 
         /**
+         * @brief Variables needed to record an "early" error
+         *
+         * If an error occurs before the fapi2 library is loaded, then
+         * use these variables to record the error for later reporting.
+         */
+        bool                      iv_earlyErrorOccurred;
+        uint32_t                  iv_earlyErrorPlid;
+        TARGETING::TargetHandle_t iv_earlyErrorTarget;
+
+        /**
          * @brief FFDC package needs to be 2 pages
          */
         const uint8_t ffdcPackageSize = 2;