Use ATTR_MAX_COMPUTE_NODES_PER_SYSTEM instead of hardcoding

hwsvd crash observed during handling hbrt message to get
tod topology data because allocated size was based on a
hardcoded value for max_compute_nodes_per_system

Change-Id: I587dac32fab9dd67fe96e213c5ef72626e4e2ea1
CQ:SW434860
CMVC-Coreq: 1059506
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/64459
Reviewed-by: Roland Veloz <rveloz@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Reviewed-by: Prachi Gupta <pragupta@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>

6 files changed, 36 insertions, 11 deletions

diff --git a/src/usr/isteps/tod/TodUtils.C b/src/usr/isteps/tod/TodUtils.C
index a1a1ede63..493787861 100644
--- a/src/usr/isteps/tod/TodUtils.C
+++ b/src/usr/isteps/tod/TodUtils.C
@@ -5,7 +5,7 @@
 /*                                                                        */
 /* OpenPOWER HostBoot Project                                             */
 /*                                                                        */
-/* Contributors Listed Below - COPYRIGHT 2016,2017                        */
+/* Contributors Listed Below - COPYRIGHT 2016,2018                        */
 /* [+] International Business Machines Corp.                              */
 /*                                                                        */
 /*                                                                        */
@@ -161,14 +161,8 @@ errlHndl_t getMaxConfigParams(
         o_maxConfigParams.max_mcs_per_sys = l_pTopLevel->getAttr
                         < TARGETING::ATTR_MAX_MCS_PER_SYSTEM > ();
 
-        // TODO RTC 181481: attribute ATTR_MAX_COMPUTE_NODES_PER_SYSTEM is
-        // currently not implemented as needed to do this assignment.  I was
-        // assured (10/2017) that HB only supports one node, so I am defaulting
-        // this to 1.  In the future HB will need to be multi-node aware and
-        // TARGETING::ATTR_MAX_COMPUTE_NODES_PER_SYSTEM implemented.
-        o_maxConfigParams.max_compute_nodes_per_sys = 1;
-//        o_maxConfigParams.max_compute_nodes_per_sys = l_pTopLevel->getAttr
-//                        < TARGETING::ATTR_MAX_COMPUTE_NODES_PER_SYSTEM > ();
+        o_maxConfigParams.max_compute_nodes_per_sys = l_pTopLevel->getAttr
+                        < TARGETING::ATTR_MAX_COMPUTE_NODES_PER_SYSTEM > ();
 
     } while(0);
 
diff --git a/src/usr/targeting/common/xmltohb/attribute_types.xml b/src/usr/targeting/common/xmltohb/attribute_types.xml
index 0158ac626..7606491a5 100755
--- a/src/usr/targeting/common/xmltohb/attribute_types.xml
+++ b/src/usr/targeting/common/xmltohb/attribute_types.xml
@@ -8081,4 +8081,19 @@ Selects which voltage level to place the Core and ECO domain PFETs upon Winkle e
   <no_export/>
 </attribute>
 
+<attribute>
+    <id>MAX_COMPUTE_NODES_PER_SYSTEM</id>
+    <description>
+        The max compute nodes available in the system.
+        Computed value based on CEC enclosures.
+    </description>
+    <simpleType>
+        <uint8_t>
+        </uint8_t>
+    </simpleType>
+    <persistency>non-volatile</persistency>
+    <readable/>
+    <no_export/>
+</attribute>
+
 </attributes>
diff --git a/src/usr/targeting/common/xmltohb/simics_CUMULUS.system.xml b/src/usr/targeting/common/xmltohb/simics_CUMULUS.system.xml
index 65f27bebc..cc7147c48 100644
--- a/src/usr/targeting/common/xmltohb/simics_CUMULUS.system.xml
+++ b/src/usr/targeting/common/xmltohb/simics_CUMULUS.system.xml
@@ -611,9 +611,13 @@
         <id>X_EREPAIR_THRESHOLD_MNFG</id>
         <default>0</default>
     </attribute>
-
+    <attribute>
+        <id>MAX_COMPUTE_NODES_PER_SYSTEM</id>
+        <default>4</default>
+    </attribute>
 
 </targetInstance>
+
 <targetInstance>
     <id>sys0node0</id>
     <type>enc-node-power9</type>
diff --git a/src/usr/targeting/common/xmltohb/simics_CUMULUS_CDIMM.system.xml b/src/usr/targeting/common/xmltohb/simics_CUMULUS_CDIMM.system.xml
index 0420087c1..287ab72e1 100644
--- a/src/usr/targeting/common/xmltohb/simics_CUMULUS_CDIMM.system.xml
+++ b/src/usr/targeting/common/xmltohb/simics_CUMULUS_CDIMM.system.xml
@@ -629,9 +629,13 @@
         <id>X_EREPAIR_THRESHOLD_MNFG</id>
         <default>0</default>
     </attribute>
-
+    <attribute>
+        <id>MAX_COMPUTE_NODES_PER_SYSTEM</id>
+        <default>4</default>
+    </attribute>
 
 </targetInstance>
+
 <targetInstance>
     <id>sys0node0</id>
     <type>enc-node-power9</type>
diff --git a/src/usr/targeting/common/xmltohb/simics_NIMBUS.system.xml b/src/usr/targeting/common/xmltohb/simics_NIMBUS.system.xml
index 1ef322818..d5ff50f0d 100644
--- a/src/usr/targeting/common/xmltohb/simics_NIMBUS.system.xml
+++ b/src/usr/targeting/common/xmltohb/simics_NIMBUS.system.xml
@@ -180,6 +180,11 @@
         <id>MSS_INTERLEAVE_ENABLE</id>
         <default>0xAF</default>
     </attribute>
+    <attribute>
+        <id>MAX_COMPUTE_NODES_PER_SYSTEM</id>
+        <default>1</default>
+    </attribute>
+
 </targetInstance>
 
 <!-- System node 0 -->
diff --git a/src/usr/targeting/common/xmltohb/target_types.xml b/src/usr/targeting/common/xmltohb/target_types.xml
index 9bc1a3fc7..0b6468e96 100644
--- a/src/usr/targeting/common/xmltohb/target_types.xml
+++ b/src/usr/targeting/common/xmltohb/target_types.xml
@@ -1033,6 +1033,9 @@
   <attribute>
     <id>BOOT_FREQ_MHZ</id>
   </attribute>
+  <attribute>
+    <id>MAX_COMPUTE_NODES_PER_SYSTEM</id>
+  </attribute>
 </targetType>
 
 <targetType>