int32_t collectCeStats( ExtensibleChip * i_mbaChip, const CenRank & i_rank,
MaintSymbols & o_maintStats, CenSymbol & o_chipMark,
uint8_t i_thr )
{
#define PRDF_FUNC "[MemUtils::collectCeStats] "
int32_t o_rc = SUCCESS;
o_chipMark = CenSymbol(); // Initially invalid.
do
{
if ( 0 == i_thr ) // Must be non-zero
{
PRDF_ERR( PRDF_FUNC "i_thr %d is invalid", i_thr );
o_rc = FAIL; break;
}
TargetHandle_t mbaTrgt = i_mbaChip->GetChipHandle();
CenMbaDataBundle * mbadb = getMbaDataBundle( i_mbaChip );
ExtensibleChip * membufChip = mbadb->getMembChip();
if ( NULL == membufChip )
{
PRDF_ERR( PRDF_FUNC "getMembChip() failed" );
o_rc = FAIL; break;
}
uint8_t mbaPos = getTargetPosition( mbaTrgt );
if ( MAX_MBA_PER_MEMBUF <= mbaPos )
{
PRDF_ERR( PRDF_FUNC "mbaPos %d is invalid", mbaPos );
o_rc = FAIL; break;
}
const bool isX4 = isDramWidthX4(mbaTrgt);
// Get the current spares on this rank.
CenSymbol sp0, sp1, ecc;
o_rc = mssGetSteerMux( mbaTrgt, i_rank, sp0, sp1, ecc );
if ( SUCCESS != o_rc )
{
PRDF_ERR( PRDF_FUNC "mssGetSteerMux() failed." );
break;
}
// Use this map to keep track of the total counts per DRAM.
DramCountMap dramCounts;
const char * reg_str = NULL;
SCAN_COMM_REGISTER_CLASS * reg = NULL;
for ( uint8_t regIdx = 0; regIdx < CE_REGS_PER_MBA; regIdx++ )
{
reg_str = mbsCeStatReg[mbaPos][regIdx];
reg = membufChip->getRegister( reg_str );
o_rc = reg->Read();
if ( SUCCESS != o_rc )
{
PRDF_ERR( PRDF_FUNC "Read() failed on %s", reg_str );
break;
}
uint8_t baseSymbol = SYMBOLS_PER_CE_REG * regIdx;
for ( uint8_t i = 0; i < SYMBOLS_PER_CE_REG; i++ )
{
uint8_t count = reg->GetBitFieldJustified( (i*8), 8 );
if ( 0 == count ) continue; // nothing to do
uint8_t sym = baseSymbol + i;
uint8_t dram = symbol2Dram( sym, isX4 );
// Keep track of the total DRAM counts.
dramCounts[dram].totalCount += count;
// Add any symbols that have exceeded threshold to the list.
if ( i_thr <= count )
{
// Keep track of the total number of symbols per DRAM that
// have exceeded threshold.
dramCounts[dram].symbolCount++;
SymbolData symData;
symData.symbol = CenSymbol::fromSymbol( mbaTrgt, i_rank,
sym, CEN_SYMBOL::BOTH_SYMBOL_DQS );
if ( !symData.symbol.isValid() )
{
PRDF_ERR( PRDF_FUNC "CenSymbol() failed: symbol=%d",
sym );
o_rc = FAIL;
break;
}
else
{
// Check if this symbol is on any of the spares.
if ( ( sp0.isValid() &&
(sp0.getDram() == symData.symbol.getDram()) ) ||
( sp1.isValid() &&
(sp1.getDram() == symData.symbol.getDram()) ) )
{
symData.symbol.setDramSpared();
}
if ( ecc.isValid() &&
(ecc.getDram() == symData.symbol.getDram()) )
{
symData.symbol.setEccSpared();
}
// Add the symbol to the list.
symData.count = count;
o_maintStats.push_back( symData );
}
}
}
if ( SUCCESS != o_rc ) break;
}
if ( SUCCESS != o_rc ) break;
if ( o_maintStats.empty() ) break; // no need to continue
// Sort the list of symbols.
std::sort( o_maintStats.begin(), o_maintStats.end(), sortSymDataCount );
// Get the DRAM with the highest count.
uint32_t highestDram = 0;
uint32_t highestCount = 0;
const uint32_t symbolTH = isX4 ? 1 : 2;
for ( DramCountMap::iterator it = dramCounts.begin();
it != dramCounts.end(); ++it )
{
if ( (symbolTH <= it->second.symbolCount) &&
(highestCount < it->second.totalCount ) )
{
highestDram = it->first;
highestCount = it->second.totalCount;
}
}
if ( 0 != highestCount )
{
uint8_t sym = dram2Symbol( highestDram, isX4 );
o_chipMark = CenSymbol::fromSymbol( mbaTrgt, i_rank, sym );
// Check if this symbol is on any of the spares.
if ( ( sp0.isValid() && (sp0.getDram() == o_chipMark.getDram()) ) ||
( sp1.isValid() && (sp1.getDram() == o_chipMark.getDram()) ) )
{
o_chipMark.setDramSpared();
}
if ( ecc.isValid() && (ecc.getDram() == o_chipMark.getDram()) )
{
o_chipMark.setEccSpared();
}
}
} while(0);
if ( SUCCESS != o_rc )
{
PRDF_ERR( PRDF_FUNC "Failed: i_mbaChip=0x%08x i_rank=m%ds%d i_thr=%d",
i_mbaChip->GetId(), i_rank.getMaster(), i_rank.getSlave(),
i_thr );
}
return o_rc;
#undef PRDF_FUNC
}
/**
* @brief MBSECCFIR[16] - Fetch New CE (NCE).
* @param i_membChip A Centaur chip.
* @param i_sc The step code data struct.
* @param i_mbaPos The MBA position.
* @return SUCCESS
*/
int32_t AnalyzeFetchNce( ExtensibleChip * i_membChip,
STEP_CODE_DATA_STRUCT & i_sc, uint32_t i_mbaPos )
{
#define PRDF_FUNC "[AnalyzeFetchNce] "
int32_t l_rc = SUCCESS;
ExtensibleChip * mbaChip = NULL;
do
{
CenMembufDataBundle * membdb = getMembufDataBundle( i_membChip );
mbaChip = membdb->getMbaChip( i_mbaPos );
if ( NULL == mbaChip )
{
PRDF_ERR( PRDF_FUNC"getMbaChip() returned NULL" );
l_rc = FAIL; break;
}
TargetHandle_t mbaTrgt = mbaChip->GetChipHandle();
CenAddr addr;
l_rc = getCenReadAddr( i_membChip, i_mbaPos, READ_NCE_ADDR, addr );
if ( SUCCESS != l_rc )
{
PRDF_ERR( PRDF_FUNC"getCenReadAddr() failed" );
break;
}
CenRank rank = addr.getRank();
if ( 0x20 > getChipLevel(i_membChip->GetChipHandle()) )
{
// There is a bug in DD1.x where the value of MBSEVR cannot be
// trusted. The workaround is too complicated for its value so
// callout the rank instead.
MemoryMru memmru ( mbaTrgt, rank, MemoryMruData::CALLOUT_RANK );
i_sc.service_data->SetCallout( memmru );
}
else // DD2.0+
{
// Get the failing symbol
const char * reg_str = (0 == i_mbaPos) ? "MBA0_MBSEVR"
: "MBA1_MBSEVR";
SCAN_COMM_REGISTER_CLASS * reg = i_membChip->getRegister(reg_str);
l_rc = reg->Read();
if ( SUCCESS != l_rc )
{
PRDF_ERR( PRDF_FUNC"Read() failed on %s", reg_str );
break;
}
uint8_t galois = reg->GetBitFieldJustified( 40, 8 );
uint8_t mask = reg->GetBitFieldJustified( 32, 8 );
CenSymbol symbol = CenSymbol::fromGalois( mbaTrgt, rank, galois,
mask );
if ( !symbol.isValid() )
{
PRDF_ERR( PRDF_FUNC"Failed to create symbol: galois=0x%02x "
"mask=0x%02x", galois, mask );
break;
}
// Check if this symbol is on any of the spares.
CenSymbol sp0, sp1, ecc;
l_rc = mssGetSteerMux( mbaTrgt, rank, sp0, sp1, ecc );
if ( SUCCESS != l_rc )
{
PRDF_ERR( PRDF_FUNC"mssGetSteerMux() failed. HUID: 0x%08x "
"rank: %d", getHuid(mbaTrgt), rank.getMaster() );
break;
}
if ( (sp0.isValid() && (sp0.getDram() == symbol.getDram())) ||
(sp1.isValid() && (sp1.getDram() == symbol.getDram())) )
{
symbol.setDramSpared();
}
if ( ecc.isValid() && (ecc.getDram() == symbol.getDram()) )
{
symbol.setEccSpared();
}
// Add the DIMM to the callout list
MemoryMru memmru ( mbaTrgt, rank, symbol );
i_sc.service_data->SetCallout( memmru, MRU_MEDA );
// Add to CE table
CenMbaDataBundle * mbadb = getMbaDataBundle( mbaChip );
uint32_t ceTableRc = mbadb->iv_ceTable.addEntry( addr, symbol );
bool doTps = ( CenMbaCeTable::NO_TH_REACHED != ceTableRc );
// Check MNFG thresholds, if needed.
if ( mfgMode() )
{
// Get the MNFG CE thresholds.
uint16_t dramTh, hrTh, dimmTh;
l_rc = getMnfgMemCeTh( mbaChip, rank, dramTh, hrTh, dimmTh );
if ( SUCCESS != l_rc )
{
PRDF_ERR( PRDF_FUNC"getMnfgMemCeTh() failed: rank=m%ds%d",
rank.getMaster(), rank.getSlave() );
break;
}
// Get counts from CE table.
uint32_t dramCount, hrCount, dimmCount;
mbadb->iv_ceTable.getMnfgCounts( addr.getRank(), symbol,
dramCount, hrCount,
dimmCount );
if ( dramTh < dramCount )
{
i_sc.service_data->AddSignatureList( mbaTrgt,
PRDFSIG_MnfgDramCte );
i_sc.service_data->SetServiceCall();
doTps = true;
}
else if ( hrTh < hrCount )
{
i_sc.service_data->AddSignatureList( mbaTrgt,
PRDFSIG_MnfgHrCte );
i_sc.service_data->SetServiceCall();
doTps = true;
}
else if ( dimmTh < dimmCount )
{
i_sc.service_data->AddSignatureList( mbaTrgt,
PRDFSIG_MnfgDimmCte );
i_sc.service_data->SetServiceCall();
doTps = true;
}
else if ( 0 != (CenMbaCeTable::TABLE_FULL & ceTableRc) )
{
i_sc.service_data->AddSignatureList( mbaTrgt,
PRDFSIG_MnfgTableFull);
// The table is full and no other threshold has been met.
// We are in a state where we may never hit a MNFG
// threshold. Callout all memory behind the MBA. Also, since
// the counts are all over the place, there may be a problem
// with the MBA. So call it out as well.
MemoryMru all_mm ( mbaTrgt, rank,
MemoryMruData::CALLOUT_ALL_MEM );
i_sc.service_data->SetCallout( all_mm, MRU_MEDA );
i_sc.service_data->SetCallout( mbaTrgt, MRU_MEDA );
i_sc.service_data->SetServiceCall();
}
else if ( 0 != (CenMbaCeTable::ENTRY_TH_REACHED & ceTableRc) )
{
i_sc.service_data->AddSignatureList( mbaTrgt,
PRDFSIG_MnfgEntryCte );
// There is a single entry threshold and no other threshold
// has been met. This is a potential flooding issue, so make
// the DIMM callout predictive.
i_sc.service_data->SetServiceCall();
}
}
// Initiate a TPS procedure, if needed.
if ( doTps )
{
// If a MNFG threshold has been reached (predictive callout), we
// will still try to start TPS just in case MNFG disables the
// termination policy.
// Will not be able to do TPS during hostboot. Note that we will
// still call handleTdEvent() so we can get the trace statement
// indicating TPS was requested during Hostboot.
l_rc = mbadb->iv_tdCtlr.handleTdEvent( i_sc, rank,
CenMbaTdCtlrCommon::TPS_EVENT );
if ( SUCCESS != l_rc )
{
PRDF_ERR( PRDF_FUNC"handleTdEvent() failed: rank=m%ds%d",
rank.getMaster(), rank.getSlave() );
break;
}
}
}
} while (0);
// Add ECC capture data for FFDC.
if ( NULL != mbaChip )
CenMbaCaptureData::addMemEccData( mbaChip, i_sc );
if ( SUCCESS != l_rc )
{
PRDF_ERR( PRDF_FUNC"Failed: i_membChip=0x%08x i_mbaPos=%d",
i_membChip->GetId(), i_mbaPos );
CalloutUtil::defaultError( i_sc );
}
return SUCCESS; // Intentionally return SUCCESS for this plugin
#undef PRDF_FUNC
}
