Workaround missing Manu-Id for Centaur DD1.X

Create a new Chip EC Feature attribute to indicate to use the first vendor
information in the MV keyword for DD1.X if the module ID does not match any
of the MV entries.

Change-Id: I34322f2c0805e6625fb05a0b8d1233a7db7110ff
RTC: 92039
Reviewed-on: http://gfw160.aus.stglabs.ibm.com:8080/gerrit/7393
Reviewed-by: MIKE J. JONES <mjjones@us.ibm.com>
Tested-by: Jenkins Server
Reviewed-by: Brian H. Horton <brianh@linux.ibm.com>
Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>

2 files changed, 111 insertions, 19 deletions

diff --git a/src/usr/hwpf/hwp/mvpd_accessors/getMBvpdSlopeInterceptData.C b/src/usr/hwpf/hwp/mvpd_accessors/getMBvpdSlopeInterceptData.C
index 5693581e2..f2b2e06ef 100644
--- a/src/usr/hwpf/hwp/mvpd_accessors/getMBvpdSlopeInterceptData.C
+++ b/src/usr/hwpf/hwp/mvpd_accessors/getMBvpdSlopeInterceptData.C
@@ -20,7 +20,7 @@
 /* Origin: 30                                                             */
 /*                                                                        */
 /* IBM_PROLOG_END_TAG                                                     */
-// $Id: getMBvpdSlopeInterceptData.C,v 1.2 2013/07/19 18:41:09 whs Exp $
+// $Id: getMBvpdSlopeInterceptData.C,v 1.3 2013/11/22 22:14:11 whs Exp $
 /**
  *  @file getMBvpdSlopeInterceptData.C
  *
@@ -82,7 +82,7 @@ fapi::ReturnCode getMBvpdSlopeInterceptData(
        case SUPPLIER_POWER_INTERCEPT:
            l_fapirc = getMBvpdSupplierData(i_mbTarget, i_attr, o_val);
            break;
-       default: // Hard to do, but needs to be caught
+       default: // Unlikely, but needs to be caught
            FAPI_ERR("getMBvpdSlopeInterceptData: invalid attribute ID 0x%02x",
                        i_attr);
            const fapi::MBvpdSlopeIntercept & ATTR_ID = i_attr;
@@ -191,13 +191,34 @@ fapi::ReturnCode getMBvpdSupplierData(
 {
 
     //#I keyword layout
-    const uint32_t  PDI_KEYWORD_SIZE = 256;
+    const uint32_t  PDI_DDR3_KEYWORD_SIZE = 256;
+    const uint32_t  PDI_DDR4_KEYWORD_SIZE = 512; // assumed size for DDR4
+    const uint8_t   SPD_DDR3 = 0xB;
+    const uint8_t   SPD_DDR4 = 0xC;
     struct pdI_keyword
     {
-        uint8_t   filler1[117]; // other fields and reserved bytes
-        uint8_t   moduleID_MSB; // at offset 117. Big endian order
-        uint8_t   moduleID_LSB; // VPD data CCIN_31E1_v.5.3.ods
-        uint8_t   filler2[PDI_KEYWORD_SIZE-117-2]; // trailing space
+        union
+        {
+            struct // common
+            {
+                uint8_t   filler1[2];
+                uint8_t   mem_type;
+            } common;
+            struct // DDR3 layout of #I
+            {
+                uint8_t   filler1[117]; // other fields and reserved bytes
+                uint8_t   moduleID_MSB; // at offset 117. Big endian order
+                uint8_t   moduleID_LSB; // VPD data CCIN_31E1_v.5.3.ods
+                uint8_t   filler2[PDI_DDR3_KEYWORD_SIZE-117-2]; //trailing space
+            } ddr3;
+            struct // DDR4 layout of #I
+            {
+                uint8_t   filler1[320]; // other fields and reserved bytes
+                uint8_t   moduleID_MSB; // at offset 320. Big endian order
+                uint8_t   moduleID_LSB; //
+                uint8_t   filler2[PDI_DDR4_KEYWORD_SIZE-320-2]; //trailing space
+            } ddr4;
+        } pdI;
     };
 
     //MV keyword layout
@@ -211,7 +232,7 @@ fapi::ReturnCode getMBvpdSupplierData(
         uint8_t   supplierPowerIntercept_LSB;
         uint8_t   reserved[4];
     };
-    struct mv_keyword //variable length
+    struct mv_keyword //variable length. Structure is size of 1 entry.
     {
         uint8_t   version;
         uint8_t   numEntries;
@@ -246,21 +267,58 @@ fapi::ReturnCode getMBvpdSupplierData(
             break;  //  break out with fapirc
         }
 
-        // Check that sufficient #I was returned.
-        if (l_pdIBufsize < PDI_KEYWORD_SIZE )
+        FAPI_DBG("getMBvpdSupplierData: #I mem type=0x%02x ",
+            l_pPdIBuffer->pdI.common.mem_type);
+
+        // check for DDR3 or DDR4
+        if (SPD_DDR3 == l_pPdIBuffer->pdI.common.mem_type )
+        {
+            // Check that sufficient #I was returned.
+            if (l_pdIBufsize < PDI_DDR3_KEYWORD_SIZE )
+            {
+                FAPI_ERR("getMBvpdSupplierData:"
+                         " less DDR3 #I keyword returned than expected %d < %d",
+                           l_pdIBufsize, PDI_DDR3_KEYWORD_SIZE);
+                const uint32_t & KEYWORD = fapi::MBVPD_KEYWORD_PDI;
+                const uint32_t & RETURNED_SIZE = l_pdIBufsize;
+                FAPI_SET_HWP_ERROR(l_fapirc,RC_MBVPD_INSUFFICIENT_VPD_RETURNED);
+                break;  //  break out with fapirc
+            }
+
+            // grab module ID
+            l_moduleID_LSB = l_pPdIBuffer->pdI.ddr3.moduleID_LSB;
+            l_moduleID_MSB = l_pPdIBuffer->pdI.ddr3.moduleID_MSB;
+        }
+        else if (SPD_DDR4 == l_pPdIBuffer->pdI.common.mem_type )
+        {
+            // Check that sufficient #I was returned.
+            if (l_pdIBufsize < PDI_DDR4_KEYWORD_SIZE )
+            {
+                FAPI_ERR("getMBvpdSupplierData:"
+                         " less DDR4 #I keyword returned than expected %d < %d",
+                           l_pdIBufsize, PDI_DDR4_KEYWORD_SIZE);
+                const uint32_t & KEYWORD = fapi::MBVPD_KEYWORD_PDI;
+                const uint32_t & RETURNED_SIZE = l_pdIBufsize;
+                FAPI_SET_HWP_ERROR(l_fapirc,RC_MBVPD_INSUFFICIENT_VPD_RETURNED);
+                break;  //  break out with fapirc
+            }
+
+            // grab module ID
+            l_moduleID_LSB = l_pPdIBuffer->pdI.ddr4.moduleID_LSB;
+            l_moduleID_MSB = l_pPdIBuffer->pdI.ddr4.moduleID_MSB;
+        }
+        else
         {
             FAPI_ERR("getMBvpdSupplierData:"
-                     " less #I keyword returned than expected %d < %d",
-                       l_pdIBufsize, PDI_KEYWORD_SIZE);
-            const uint32_t & KEYWORD = fapi::MBVPD_KEYWORD_PDI;
-            const uint32_t & RETURNED_SIZE = l_pdIBufsize;
-            FAPI_SET_HWP_ERROR(l_fapirc, RC_MBVPD_INSUFFICIENT_VPD_RETURNED );
+                     " unexpected memory type in #I");
+            const uint8_t & MEM_TYPE = l_pPdIBuffer->pdI.common.mem_type;
+            FAPI_SET_HWP_ERROR(l_fapirc,RC_MBVPD_UNEXPECTED_MEM_TYPE);
             break;  //  break out with fapirc
         }
 
-        // grab module ID and free buffer
-        l_moduleID_LSB = l_pPdIBuffer->moduleID_LSB;
-        l_moduleID_MSB = l_pPdIBuffer->moduleID_MSB;
+        // Done with #I buffer. Error paths free buffer at end.
+        delete l_pPdIBuffer;
+        l_pPdIBuffer = NULL;
 
         FAPI_DBG("getMBvpdSupplierData: #I moduleID=0x%08x ",
             l_moduleID_LSB+(l_moduleID_MSB<<8));
@@ -329,6 +387,32 @@ fapi::ReturnCode getMBvpdSupplierData(
             l_pVendorInfo++;
         }
 
+        // If not found, see if first supplier should be used
+        // and there is one (unlikely that there is not one).
+        if ( ! l_found &&
+             0 < l_pMvBuffer->numEntries &&
+             sizeof (mv_keyword) <= l_mvBufsize)
+        {
+            uint8_t l_checkUseFirstSupplier = 0;
+            l_fapirc = FAPI_ATTR_GET(
+                       ATTR_CENTAUR_EC_USE_FIRST_SUPPLIER_FOR_INVALID_MODULE_ID,
+                       &i_mbTarget,
+                       l_checkUseFirstSupplier);
+            if (l_fapirc)
+            {
+                FAPI_ERR("getMBvpdSupplierData:"
+                         " get attr use first supplier failed");
+                break;  //  break out with fapirc
+            }
+            FAPI_DBG("getMBvpdSupplierData: attr use first supplier = 0x%02x",
+                      l_checkUseFirstSupplier);
+            if ( l_checkUseFirstSupplier)
+            {
+                l_pVendorInfo = &(l_pMvBuffer->firstVendorInfo);
+                l_found = true;
+            }
+        }
+
         // Return requested value if found
         if ( l_found )
         {
diff --git a/src/usr/hwpf/hwp/mvpd_accessors/mvpd_errors.xml b/src/usr/hwpf/hwp/mvpd_accessors/mvpd_errors.xml
index 69cebc849..d8f4ea9ea 100644
--- a/src/usr/hwpf/hwp/mvpd_accessors/mvpd_errors.xml
+++ b/src/usr/hwpf/hwp/mvpd_accessors/mvpd_errors.xml
@@ -20,7 +20,7 @@
 <!-- Origin: 30                                                             -->
 <!--                                                                        -->
 <!-- IBM_PROLOG_END_TAG                                                     -->
-<!-- $Id: mvpd_errors.xml,v 1.11 2013/10/30 21:14:03 whs Exp $ -->
+<!-- $Id: mvpd_errors.xml,v 1.13 2013/11/22 22:14:37 whs Exp $ -->
 <hwpErrors>
   <!-- ********************************************************************* -->
   <hwpError>
@@ -141,4 +141,12 @@
     <ffdc>PORT0</ffdc>
     <ffdc>PORT1</ffdc>
   </hwpError>
+  <!-- ********************************************************************* -->
+  <hwpError>
+    <rc>RC_MBVPD_UNEXPECTED_MEM_TYPE</rc>
+    <description>
+        Memory type in VSPD keyword #I not DDR3 or DDR4
+    </description>
+    <ffdc>MEM_TYPE</ffdc>
+  </hwpError>
 </hwpErrors>