support IO reconfig loop for OBUS DL link training failures

- p9c DD1.1+ only, DD1.0 not supported

- FW to trigger reconfig loop back to step 0 from
  sys_proc_fab_iovalid if:
  1) sys_proc_fab_iovalid rc = FAPI2_RC_SUCCESS
     -- AND --
  2) new output o_obus_dl_rcs (vector of P9_FAB_IOVALID_DL_NOT_TRAINED_ERR rc
     objects identifying links which failed on this chip) has entries

- attribute changes:
  ATTR_LINK_TRAIN -- remove platinit tag, attr should init to zero (both even
                     and odd), and reconfig loop will adjust value as we go

CMVC-Prereq:1057645
Change-Id: I95eebd2b893db6d2511aae40798c0a4e049835d6
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/59022
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: HWSV CI <hwsv-ci+hostboot@us.ibm.com>
Tested-by: PPE CI <ppe-ci+hostboot@us.ibm.com>
Reviewed-by: Sachin Gupta <sgupta2m@in.ibm.com>
Tested-by: Hostboot CI <hostboot-ci+hostboot@us.ibm.com>
Reviewed-by: Thi N. Tran <thi@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/59039
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>

2 files changed, 42 insertions, 5 deletions

diff --git a/src/import/chips/p9/procedures/xml/attribute_info/nest_attributes.xml b/src/import/chips/p9/procedures/xml/attribute_info/nest_attributes.xml
index db13c9ede..f52d98822 100644
--- a/src/import/chips/p9/procedures/xml/attribute_info/nest_attributes.xml
+++ b/src/import/chips/p9/procedures/xml/attribute_info/nest_attributes.xml
@@ -533,10 +533,11 @@
   <enum>
     BOTH = 0x0,
     EVEN_ONLY = 0x1,
-    ODD_ONLY = 0x2
+    ODD_ONLY = 0x2,
+    NONE = 0x3
   </enum>
   <initToZero/>
-  <platInit/>
+  <writeable/>
 </attribute>
 <!-- ********************************************************************** -->
 <attribute>
diff --git a/src/import/chips/p9/procedures/xml/error_info/p9_fab_iovalid_errors.xml b/src/import/chips/p9/procedures/xml/error_info/p9_fab_iovalid_errors.xml
index 241cc4743..643759530 100644
--- a/src/import/chips/p9/procedures/xml/error_info/p9_fab_iovalid_errors.xml
+++ b/src/import/chips/p9/procedures/xml/error_info/p9_fab_iovalid_errors.xml
@@ -5,7 +5,7 @@
 <!--                                                                        -->
 <!-- OpenPOWER HostBoot Project                                             -->
 <!--                                                                        -->
-<!-- Contributors Listed Below - COPYRIGHT 2015,2017                        -->
+<!-- Contributors Listed Below - COPYRIGHT 2015,2018                        -->
 <!-- [+] International Business Machines Corp.                              -->
 <!--                                                                        -->
 <!--                                                                        -->
@@ -103,16 +103,20 @@
   </hwpError>
   <!-- ******************************************************************** -->
   <hwpError>
-    <rc>RC_P9_FAB_IOVALID_DL_NOT_TRAINED_ERR</rc>
+    <rc>RC_P9_FAB_IOVALID_DL_NOT_TRAINED_RETRAIN_NONE_ERR</rc>
     <description>
       Procedure: p9_fab_iovalid
-      Link DL training did not complete successfully
+      Link DL training did not complete successfully,
+      both halves of link pair are incapable of training.
     </description>
     <ffdc>TARGET</ffdc>
     <ffdc>LOC_ENDP_TARGET</ffdc>
     <ffdc>LOC_ENDP_TYPE</ffdc>
     <ffdc>LOC_ENDP_UNIT_ID</ffdc>
     <ffdc>LOC_LINK_TRAIN</ffdc>
+    <ffdc>LOC_LINK_TRAIN_NEXT</ffdc>
+    <ffdc>LOC_LINK_FAILED0</ffdc>
+    <ffdc>LOC_LINK_FAILED1</ffdc>
     <ffdc>REM_ENDP_TARGET</ffdc>
     <ffdc>REM_ENDP_TYPE</ffdc>
     <ffdc>REM_ENDP_UNIT_ID</ffdc>
@@ -143,6 +147,38 @@
   </hwpError>
   <!-- ******************************************************************** -->
   <hwpError>
+    <rc>RC_P9_FAB_IOVALID_DL_NOT_TRAINED_RETRAIN_HALF_ERR</rc>
+    <description>
+      Procedure: p9_fab_iovalid
+      Link DL training did not complete successfully,
+      attempt retraining on half link basis.
+    </description>
+    <ffdc>TARGET</ffdc>
+    <ffdc>LOC_ENDP_TARGET</ffdc>
+    <ffdc>LOC_ENDP_TYPE</ffdc>
+    <ffdc>LOC_ENDP_UNIT_ID</ffdc>
+    <ffdc>LOC_LINK_TRAIN</ffdc>
+    <ffdc>LOC_LINK_TRAIN_NEXT</ffdc>
+    <ffdc>LOC_LINK_FAILED0</ffdc>
+    <ffdc>LOC_LINK_FAILED1</ffdc>
+    <ffdc>REM_ENDP_TARGET</ffdc>
+    <ffdc>REM_ENDP_TYPE</ffdc>
+    <ffdc>REM_ENDP_UNIT_ID</ffdc>
+    <callout>
+      <target>LOC_ENDP_TARGET</target>
+      <priority>MEDIUM</priority>
+    </callout>
+    <callout>
+      <target>REM_ENDP_TARGET</target>
+      <priority>MEDIUM</priority>
+    </callout>
+    <callout>
+      <bus>LOC_ENDP_TARGET,REM_ENDP_TARGET</bus>
+      <priority>HIGH</priority>
+    </callout>
+  </hwpError>
+  <!-- ******************************************************************** -->
+  <hwpError>
     <rc>RC_P9_FAB_IOVALID_TL_NOT_TRAINED_ERR</rc>
     <description>
       Procedure: p9_fab_iovalid