Prioritize system vpd over memb vpd in devtree

If multiple targets are using the same physical eeprom for
their vpd, the most senior of the targets is what should be
reported into the devtree.

Change-Id: Ic05761b634d24f3ef71adc17c572834876f2cee9
RTC: 124396
Reviewed-on: http://gfw160.aus.stglabs.ibm.com:8080/gerrit/15884
Tested-by: Jenkins Server
Reviewed-by: William H. Schwartz <whs@us.ibm.com>
Reviewed-by: Corey V. Swenson <cswenson@us.ibm.com>
Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>

1 files changed, 219 insertions, 118 deletions

diff --git a/src/usr/i2c/eepromdd.C b/src/usr/i2c/eepromdd.C
index b0482f6f0..eb5ceb2ad 100755
--- a/src/usr/i2c/eepromdd.C
+++ b/src/usr/i2c/eepromdd.C
@@ -1270,148 +1270,249 @@ errlHndl_t eepromGetI2CMasterTarget ( TARGETING::Target * i_target,
 
 
 /**
- * @brief Return a set of information related to every unique
- *        EEPROM in the system
+ * @brief Compare predicate for EepromInfo_t
  */
-void getEEPROMs( std::list<EepromInfo_t>& o_info )
+class isSameEeprom
 {
-    TRACDCOMP(g_trac_eeprom,">>getEEPROMs()");
+  public:
+    isSameEeprom( EepromInfo_t& i_first )
+    : iv_first(i_first)
+    {}
 
-    // loop through every present target
-    TARGETING::PredicateHwas isPresent;
-    isPresent.reset().poweredOn(true).present(true);
-    TARGETING::PredicatePostfixExpr goodFilter;
-    goodFilter.push(&isPresent);
-    //  apply the filter through all targets.
-    TARGETING::TargetRangeFilter targ_itr(
-                                          TARGETING::targetService().begin(),
-                                          TARGETING::targetService().end(),
-                                          &goodFilter );
-    for( ; targ_itr; ++targ_itr )
+    bool operator()( EepromInfo_t& i_second )
     {
-        TRACDCOMP(g_trac_eeprom,"Targ %.8X",TARGETING::get_huid(*targ_itr));
-
-        // try all defined types of EEPROMs
-        for( eeprom_chip_types_t eep_type = FIRST_CHIP_TYPE;
-             eep_type < LAST_CHIP_TYPE;
-             eep_type = static_cast<eeprom_chip_types_t>(eep_type+1) )
-        {
-            bool found_eep = false;
-            TARGETING::EepromVpdPrimaryInfo eepromData;
-
-            switch( eep_type )
-            {
-                case VPD_PRIMARY:
-                    if( targ_itr->
-                        tryGetAttr<TARGETING::ATTR_EEPROM_VPD_PRIMARY_INFO>
-                        ( eepromData ) )
-
-                    {
-                        found_eep = true;
-                    }
-                    break;
+        return( (iv_first.i2cMaster == i_second.i2cMaster)
+                && (iv_first.engine == i_second.engine)
+                && (iv_first.port == i_second.port)
+                && (iv_first.devAddr == i_second.devAddr) );
+    }
+  private:
+    EepromInfo_t& iv_first;
+};
 
-                case VPD_BACKUP:
-                    if( targ_itr->
-                        tryGetAttr<TARGETING::ATTR_EEPROM_VPD_BACKUP_INFO>
-                        ( reinterpret_cast<
-                          TARGETING::ATTR_EEPROM_VPD_BACKUP_INFO_type&>
-                          ( eepromData) ) )
-                    {
-                        found_eep = true;
-                    }
-                    break;
+/**
+ * @brief Add any new EEPROMs associated with this target
+ *   to the list
+ * @param[in] i_list : list of previously discovered EEPROMs
+ * @param[out] i_targ : owner of EEPROMs to add
+ */
+void add_to_list( std::list<EepromInfo_t>& i_list,
+                  TARGETING::Target* i_targ )
+{
+    TRACDCOMP(g_trac_eeprom,"Targ %.8X",TARGETING::get_huid(i_targ));
 
-                case SBE_PRIMARY:
-                    if( targ_itr->
-                        tryGetAttr<TARGETING::ATTR_EEPROM_SBE_PRIMARY_INFO>
-                        ( reinterpret_cast<
-                          TARGETING::ATTR_EEPROM_SBE_PRIMARY_INFO_type&>
-                          ( eepromData) ) )
-                    {
-                        found_eep = true;
-                    }
-                    break;
+    // try all defined types of EEPROMs
+    for( eeprom_chip_types_t eep_type = FIRST_CHIP_TYPE;
+         eep_type < LAST_CHIP_TYPE;
+         eep_type = static_cast<eeprom_chip_types_t>(eep_type+1) )
+    {
+        bool found_eep = false;
+        TARGETING::EepromVpdPrimaryInfo eepromData;
 
-                case SBE_BACKUP:
-                    if( targ_itr->
-                        tryGetAttr<TARGETING::ATTR_EEPROM_SBE_BACKUP_INFO>
-                        ( reinterpret_cast<
-                          TARGETING::ATTR_EEPROM_SBE_BACKUP_INFO_type&>
-                          ( eepromData) ) )
-                    {
-                        found_eep = true;
-                    }
-                    break;
+        switch( eep_type )
+        {
+            case VPD_PRIMARY:
+                if( i_targ->
+                    tryGetAttr<TARGETING::ATTR_EEPROM_VPD_PRIMARY_INFO>
+                    ( eepromData ) )
 
-                case LAST_CHIP_TYPE:
-                    //only included to catch additional types later on
-                    found_eep = false;
-                    break;
-            }
-            if( found_eep )
-            {
-                // check that the path exists
-                bool exists = false;
-                TARGETING::targetService().exists( eepromData.i2cMasterPath,
-                                                   exists );
-                if( !exists )
                 {
-                    continue;
+                    found_eep = true;
                 }
+                break;
 
-                // Since it exists, convert to a target
-                TARGETING::Target* i2cm = TARGETING::targetService()
-                  .toTarget( eepromData.i2cMasterPath );
-                if( NULL == i2cm )
+            case VPD_BACKUP:
+                if( i_targ->
+                    tryGetAttr<TARGETING::ATTR_EEPROM_VPD_BACKUP_INFO>
+                    ( reinterpret_cast<
+                      TARGETING::ATTR_EEPROM_VPD_BACKUP_INFO_type&>
+                      ( eepromData) ) )
                 {
-                    //not sure how this could happen, but just skip it
-                    continue;
+                    found_eep = true;
                 }
+                break;
 
-                // ignore anything with junk data
-                TARGETING::Target * sys = NULL;
-                TARGETING::targetService().getTopLevelTarget( sys );
-                if( i2cm == sys )
+            case SBE_PRIMARY:
+                if( i_targ->
+                    tryGetAttr<TARGETING::ATTR_EEPROM_SBE_PRIMARY_INFO>
+                    ( reinterpret_cast<
+                      TARGETING::ATTR_EEPROM_SBE_PRIMARY_INFO_type&>
+                      ( eepromData) ) )
                 {
-                    continue;
+                    found_eep = true;
                 }
+                break;
 
-                // copy all the data out
-                EepromInfo_t eep_info;
-                eep_info.i2cMaster = i2cm;
-                eep_info.engine = eepromData.engine;
-                eep_info.port = eepromData.port;
-                eep_info.devAddr = eepromData.devAddr;
-                eep_info.device = eep_type;
-                eep_info.assocTarg = *targ_itr;
-                eep_info.sizeKB = eepromData.maxMemorySizeKB;
-                eep_info.addrBytes = eepromData.byteAddrOffset;
-                //one more lookup for the speed
-                TARGETING::ATTR_I2C_BUS_SPEED_ARRAY_type speeds;
-                if( i2cm->tryGetAttr<TARGETING::ATTR_I2C_BUS_SPEED_ARRAY>
-                    (speeds) )
-                {
-                    if( (eep_info.engine > I2C_BUS_MAX_ENGINE(speeds))
-                        || (eep_info.port > I2C_BUS_MAX_PORT(speeds)) )
-                    {
-                        continue;
-                    }
-                    eep_info.busFreq = speeds[eep_info.engine][eep_info.port];
-                    eep_info.busFreq *= 1000; //convert KHz->Hz
-                }
-                else
+            case SBE_BACKUP:
+                if( i_targ->
+                    tryGetAttr<TARGETING::ATTR_EEPROM_SBE_BACKUP_INFO>
+                    ( reinterpret_cast<
+                      TARGETING::ATTR_EEPROM_SBE_BACKUP_INFO_type&>
+                      ( eepromData) ) )
                 {
-                    continue;
+                    found_eep = true;
                 }
+                break;
 
-                // stick it into the output list
-                o_info.push_back(eep_info);
-                TRACDCOMP(g_trac_eeprom,"--Adding i2cm=%.8X, type=%d, eng=%d, port=%d", TARGETING::get_huid(i2cm),eep_type,eepromData.engine,eepromData.port);
+            case LAST_CHIP_TYPE:
+                //only included to catch additional types later on
+                found_eep = false;
+                break;
+        }
+
+        if( !found_eep )
+        {
+            //nothing to do
+            continue;
+        }
+
+        // check that the path exists
+        bool exists = false;
+        TARGETING::targetService().exists( eepromData.i2cMasterPath,
+                                           exists );
+        if( !exists )
+        {
+            continue;
+        }
+
+        // Since it exists, convert to a target
+        TARGETING::Target* i2cm = TARGETING::targetService()
+          .toTarget( eepromData.i2cMasterPath );
+        if( NULL == i2cm )
+        {
+            //not sure how this could happen, but just skip it
+            continue;
+        }
+
+        // ignore anything with junk data
+        TARGETING::Target * sys = NULL;
+        TARGETING::targetService().getTopLevelTarget( sys );
+        if( i2cm == sys )
+        {
+            continue;
+        }
+
+        // copy all the data out
+        EepromInfo_t eep_info;
+        eep_info.i2cMaster = i2cm;
+        eep_info.engine = eepromData.engine;
+        eep_info.port = eepromData.port;
+        eep_info.devAddr = eepromData.devAddr;
+        eep_info.device = eep_type;
+        eep_info.assocTarg = i_targ;
+        eep_info.sizeKB = eepromData.maxMemorySizeKB;
+        eep_info.addrBytes = eepromData.byteAddrOffset;
+        //one more lookup for the speed
+        TARGETING::ATTR_I2C_BUS_SPEED_ARRAY_type speeds;
+        if( i2cm->tryGetAttr<TARGETING::ATTR_I2C_BUS_SPEED_ARRAY>
+            (speeds) )
+        {
+            if( (eep_info.engine > I2C_BUS_MAX_ENGINE(speeds))
+                || (eep_info.port > I2C_BUS_MAX_PORT(speeds)) )
+            {
+                continue;
             }
+            eep_info.busFreq = speeds[eep_info.engine][eep_info.port];
+            eep_info.busFreq *= 1000; //convert KHz->Hz
+        }
+        else
+        {
+            continue;
+        }
+
+        // check if the eeprom is already in our list
+        std::list<EepromInfo_t>::iterator oldeep =
+          find_if( i_list.begin(), i_list.end(),
+                   isSameEeprom(eep_info) );
+        if( oldeep == i_list.end() )
+        {
+            // didn't find it in our list so stick it into the output list
+            i_list.push_back(eep_info);
+            TRACDCOMP(g_trac_eeprom,"--Adding i2cm=%.8X, type=%d, eng=%d, port=%d, addr=%.2X for %.8X", TARGETING::get_huid(i2cm),eep_type,eepromData.engine,eepromData.port, eep_info.devAddr,  TARGETING::get_huid(eep_info.assocTarg));
+        }
+        else
+        {
+            TRACDCOMP(g_trac_eeprom,"--Skipping duplicate i2cm=%.8X, type=%d, eng=%d, port=%d, addr=%.2X for %.8X", TARGETING::get_huid(i2cm),eep_type,eepromData.engine,eepromData.port, eep_info.devAddr,  TARGETING::get_huid(eep_info.assocTarg));
         }
     }
+}
+
+/**
+ * @brief Return a set of information related to every unique
+ *        EEPROM in the system
+ */
+void getEEPROMs( std::list<EepromInfo_t>& o_info )
+{
+    TRACDCOMP(g_trac_eeprom,">>getEEPROMs()");
+
+    // We only want to have a single entry in our list per
+    //  physical EEPROM.  Since multiple targets could be
+    //  using the same EEPROM, we need to have a hierarchy
+    //  of importance.
+    //    node/planar > proc > membuf > dimm
+
+    // predicate to only look for this that are actually there
+    TARGETING::PredicateHwas isPresent;
+    isPresent.reset().poweredOn(true).present(true);
+
+    // #1 - Nodes
+    TARGETING::PredicateCTM nodes( TARGETING::CLASS_ENC,
+                                   TARGETING::TYPE_NODE,
+                                   TARGETING::MODEL_NA );
+    TARGETING::PredicatePostfixExpr l_nodeFilter;
+    l_nodeFilter.push(&isPresent).push(&nodes).And();
+    TARGETING::TargetRangeFilter node_itr( TARGETING::targetService().begin(),
+                                           TARGETING::targetService().end(),
+                                           &l_nodeFilter );
+    for( ; node_itr; ++node_itr )
+    {
+        add_to_list( o_info, *node_itr );
+    }
+
+    // #2 - Procs
+    TARGETING::PredicateCTM procs( TARGETING::CLASS_CHIP,
+                                   TARGETING::TYPE_PROC,
+                                   TARGETING::MODEL_NA );
+    TARGETING::PredicatePostfixExpr l_procFilter;
+    l_procFilter.push(&isPresent).push(&procs).And();
+    TARGETING::TargetRangeFilter proc_itr( TARGETING::targetService().begin(),
+                                           TARGETING::targetService().end(),
+                                           &l_procFilter );
+    for( ; proc_itr; ++proc_itr )
+    {
+        add_to_list( o_info, *proc_itr );
+    }
+
+    // #3 - Membufs
+    TARGETING::PredicateCTM membs( TARGETING::CLASS_CHIP,
+                                   TARGETING::TYPE_MEMBUF,
+                                   TARGETING::MODEL_NA );
+    TARGETING::PredicatePostfixExpr l_membFilter;
+    l_membFilter.push(&isPresent).push(&membs).And();
+    TARGETING::TargetRangeFilter memb_itr( TARGETING::targetService().begin(),
+                                           TARGETING::targetService().end(),
+                                           &l_membFilter );
+    for( ; memb_itr; ++memb_itr )
+    {
+        add_to_list( o_info, *memb_itr );
+    }
+
+    // #4 - DIMMs
+    TARGETING::PredicateCTM dimms( TARGETING::CLASS_CARD,
+                                   TARGETING::TYPE_DIMM,
+                                   TARGETING::MODEL_NA );
+    TARGETING::PredicatePostfixExpr l_dimmFilter;
+    l_dimmFilter.push(&isPresent).push(&dimms).And();
+    TARGETING::TargetRangeFilter dimm_itr( TARGETING::targetService().begin(),
+                                           TARGETING::targetService().end(),
+                                           &l_dimmFilter );
+    for( ; dimm_itr; ++dimm_itr )
+    {
+        add_to_list( o_info, *dimm_itr );
+    }
+
     TRACDCOMP(g_trac_eeprom,"<<getEEPROMs()");
 }
 
+
 } // end namespace EEPROM