Support for full stop between isteps for OP

Users can now stop indefinitely between isteps on BMC systems.

Tested on Palmetto board.

Change-Id: If68bd72464bfe8e43ce1848e72ec7c9f35d1d584
RTC: 122986
Reviewed-on: http://gfw160.aus.stglabs.ibm.com:8080/gerrit/15447
Tested-by: Jenkins Server
Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>

2 files changed, 29 insertions, 2 deletions

diff --git a/src/usr/initservice/istepdispatcher/istepdispatcher.C b/src/usr/initservice/istepdispatcher/istepdispatcher.C
index 7aae59bd2..722531b35 100644
--- a/src/usr/initservice/istepdispatcher/istepdispatcher.C
+++ b/src/usr/initservice/istepdispatcher/istepdispatcher.C
@@ -2111,12 +2111,33 @@ void IStepDispatcher::istepPauseSet(uint8_t i_step, uint8_t i_substep)
                         l_p_pauseCfg->bpTagInfo
                         );
 
-            // If full stop is requested then send breakpoint message to FSP
-            // otherwise sleep for the requested number of seconds
+            // If full stop is requested then send breakpoint message to FSP.
+            // This stop can be resumed via external command from FSP.
             if(l_p_pauseCfg->fullStopEn)
             {
                 iStepBreakPoint(l_p_pauseCfg->bpTagInfo);
             }
+            // If infinite pause is set then hang in a tight loop indefinitely.
+            // This is a permanent stop that cannot be resumed via any command.
+            else if(l_p_pauseCfg->pauseLen == ISTEP_PAUSE_SET_INFINITE)
+            {
+                TRACFCOMP(g_trac_initsvc, INFO_MRK"istepPauseSet: "
+                        "pauseLen=0x%02X, Permanent pause enabled.",
+                        l_p_pauseCfg->pauseLen
+                        );
+
+#ifdef CONFIG_CONSOLE
+                CONSOLE::displayf(NULL, "istepPauseSet: "
+                        "pauseLen=0x%02X, Permanent pause enabled.",
+                        l_p_pauseCfg->pauseLen
+                        );
+#endif
+                while(1)
+                {
+                    nanosleep(1,0);
+                }
+            }
+            // Otherwise sleep for the requested number of seconds
             else
             {
                 nanosleep(l_p_pauseCfg->pauseLen,0);
diff --git a/src/usr/initservice/istepdispatcher/istepdispatcher.H b/src/usr/initservice/istepdispatcher/istepdispatcher.H
index 3f5cc551e..918d9a46d 100644
--- a/src/usr/initservice/istepdispatcher/istepdispatcher.H
+++ b/src/usr/initservice/istepdispatcher/istepdispatcher.H
@@ -62,6 +62,12 @@ namespace   INITSERVICE
  */
 const uint64_t MAX_WAIT_TIME_SEC = 10;
 
+/**
+ * @brief constant value that defines the infinite pause for the istepPauseSet
+ *      method.
+ */
+const uint64_t ISTEP_PAUSE_SET_INFINITE = 0xFF;
+
 #ifdef CONFIG_RECONFIG_LOOP_TESTS_ENABLE
 /**
  * @brief The Maximum number of elements in the ATTR_RECONFIG_LOOP_TESTS