// ------------------------------------------------------------------
// dimmPresenceDetect
// ------------------------------------------------------------------
errlHndl_t dimmPresenceDetect( DeviceFW::OperationType i_opType,
TARGETING::Target * i_target,
void * io_buffer,
size_t & io_buflen,
int64_t i_accessType,
va_list i_args )
{
errlHndl_t err = NULL;
bool present = false;
size_t presentSz = sizeof(present);
TRACSSCOMP( g_trac_spd,
ENTER_MRK"dimmPresenceDetect()" );
do
{
// Check to be sure that the buffer is big enough.
if( !(io_buflen >= sizeof(bool)) )
{
TRACFCOMP( g_trac_spd,
ERR_MRK"dimmPresenceDetect() - Invalid Data Length: %d",
io_buflen );
/*@
* @errortype
* @reasoncode VPD::VPD_INSUFFICIENT_BUFFER_SIZE
* @severity ERRORLOG::ERRL_SEV_UNRECOVERABLE
* @moduleid VPD::VPD_SPD_PRESENCE_DETECT
* @userdata1 Buffer Length
* @userdata2 <UNUSED>
* @devdesc Buffer for checking Presence Detect
* was not the correct size.
*/
err = new ERRORLOG::ErrlEntry( ERRORLOG::ERRL_SEV_UNRECOVERABLE,
VPD::VPD_SPD_PRESENCE_DETECT,
VPD::VPD_INSUFFICIENT_BUFFER_SIZE,
TO_UINT64(io_buflen),
0x0,
true /*Add HB Software Callout*/);
err->collectTrace( "SPD", 256);
break;
}
// Is the target present
#ifdef CONFIG_DJVPD_READ_FROM_HW
// Check if the parent MBA/MEMBUF is present. If it is not then
// no reason to check the DIMM which would otherwise generate
// tons of FSI errors. We can't just check if parent MBA
// is functional because DIMM presence detect is called before
// the parent MBA/MEMBUF is set as present/functional.
TARGETING::TargetHandleList membufList;
TARGETING::PredicateCTM membufPred( TARGETING::CLASS_CHIP,
TARGETING::TYPE_MEMBUF );
TARGETING::targetService().getAssociated(
membufList,
i_target,
TARGETING::TargetService::PARENT_BY_AFFINITY,
TARGETING::TargetService::ALL,
&membufPred);
bool parentPresent = false;
const TARGETING::TargetHandle_t membufTarget = *(membufList.begin());
err = deviceRead(membufTarget, &parentPresent, presentSz,
DEVICE_PRESENT_ADDRESS());
if (err)
{
TRACFCOMP(
g_trac_spd,
"Error reading parent MEMBUF present: huid 0x%X DIMM huid 0x%X",
TARGETING::get_huid(membufTarget),
TARGETING::get_huid(i_target) );
break;
}
if (!parentPresent)
{
present = false;
// Invalidate the SPD in PNOR
err = VPD::invalidatePnorCache(i_target);
if (err)
{
TRACFCOMP( g_trac_spd, "Error invalidating SPD in PNOR" );
}
break;
}
#endif
present = spdPresent( i_target );
if( present == false )
{
TRACUCOMP( g_trac_spd,
INFO_MRK"Dimm was found to be NOT present." );
}
else
{
TRACUCOMP( g_trac_spd,
INFO_MRK"Dimm was found to be present." );
}
#if defined(CONFIG_DJVPD_READ_FROM_HW) && defined(CONFIG_DJVPD_READ_FROM_PNOR)
if( present )
{
// Check if the VPD data in the PNOR matches the SEEPROM
err = VPD::ensureCacheIsInSync( i_target );
if( err )
{
present = false;
TRACFCOMP(g_trac_spd,ERR_MRK "dimmPresenceDetectt> Error during ensureCacheIsInSync (SPD)" );
break;
}
}
else
{
// SPD is not present, invalidate the SPD in PNOR
err = VPD::invalidatePnorCache(i_target);
if (err)
{
TRACFCOMP( g_trac_spd, "Error invalidating SPD in PNOR" );
}
}
#endif
if( present && !err )
{
//Fsp sets PN/SN so if there is none, do it here
if(!INITSERVICE::spBaseServicesEnabled())
{
//populate serial and part number attributes
SPD::setPartAndSerialNumberAttributes( i_target );
}
// Read ATTR_CLEAR_DIMM_SPD_ENABLE attribute
TARGETING::Target* l_sys = NULL;
TARGETING::targetService().getTopLevelTarget(l_sys);
TARGETING::ATTR_CLEAR_DIMM_SPD_ENABLE_type l_clearSPD =
l_sys->getAttr<TARGETING::ATTR_CLEAR_DIMM_SPD_ENABLE>();
// If SPD clear is enabled then write 0's into magic word for
// DIMM_BAD_DQ_DATA keyword
// Note: If there's an error from performing the clearing,
// just log the error and continue.
if (l_clearSPD)
{
size_t l_size = 0;
// Do a read to get the DIMM_BAD_DQ_DATA keyword size
err = deviceRead(i_target, NULL, l_size,
DEVICE_SPD_ADDRESS( DIMM_BAD_DQ_DATA ));
if (err)
{
TRACFCOMP(g_trac_spd, "dimmPresenceDetect - "
"Error reading DIMM_BAD_DQ_DATA keyword size");
errlCommit( err, VPD_COMP_ID );
}
else
{
// Clear the data
TRACFCOMP( g_trac_spd, "Clearing out BAD_DQ_DATA SPD on "
"DIMM HUID 0x%X",
TARGETING::get_huid(i_target));
uint8_t * l_data = static_cast<uint8_t*>(malloc( l_size ));
memset(l_data, 0, l_size);
err = deviceWrite(i_target, l_data, l_size,
DEVICE_SPD_ADDRESS( DIMM_BAD_DQ_DATA ));
if (err)
{
TRACFCOMP( g_trac_spd, "Error trying to clear SPD on "
"DIMM HUID 0x%X",
TARGETING::get_huid(i_target));
errlCommit( err, VPD_COMP_ID );
}
// Free the memory
if (NULL != l_data)
{
free(l_data);
}
}
}
}
// copy present value into output buffer so caller can read it
memcpy( io_buffer, &present, presentSz );
io_buflen = presentSz;
} while( 0 );
TRACSSCOMP( g_trac_spd,
EXIT_MRK"dimmPresenceDetect()" );
return err;
} // end dimmPresenceDetect
// ------------------------------------------------------------------
// dimmPresenceDetect
// ------------------------------------------------------------------
errlHndl_t dimmPresenceDetect( DeviceFW::OperationType i_opType,
TARGETING::Target * i_target,
void * io_buffer,
size_t & io_buflen,
int64_t i_accessType,
va_list i_args )
{
errlHndl_t err = NULL;
bool present = false;
size_t presentSz = sizeof(present);
TRACSSCOMP( g_trac_spd, ENTER_MRK"dimmPresenceDetect() "
"DIMM HUID 0x%X", TARGETING::get_huid(i_target));
do
{
// Check to be sure that the buffer is big enough.
if( !(io_buflen >= sizeof(bool)) )
{
TRACFCOMP( g_trac_spd, ERR_MRK"dimmPresenceDetect() "
"Invalid Data Length: %d",
io_buflen );
/*@
* @errortype
* @reasoncode VPD::VPD_INSUFFICIENT_BUFFER_SIZE
* @severity ERRORLOG::ERRL_SEV_UNRECOVERABLE
* @moduleid VPD::VPD_SPD_PRESENCE_DETECT
* @userdata1 Buffer Length
* @userdata2 <UNUSED>
* @devdesc Buffer for checking Presence Detect
* was not the correct size.
*/
err = new ERRORLOG::ErrlEntry( ERRORLOG::ERRL_SEV_UNRECOVERABLE,
VPD::VPD_SPD_PRESENCE_DETECT,
VPD::VPD_INSUFFICIENT_BUFFER_SIZE,
TO_UINT64(io_buflen),
0x0,
true /*Add HB Software Callout*/);
err->collectTrace( "SPD", 256);
break;
}
// Is the target present?
#ifdef CONFIG_DJVPD_READ_FROM_HW
// Check if the i2c master is present.
// If it is not then no reason to check the DIMM which would
// otherwise generate tons of FSI errors.
// We can't just check if parent MCA or MBA
// is functional because DIMM presence detect is called before
// the parent MCS/MCA or MBA/MEMBUF is set as present/functional.
bool l_i2cMasterPresent = false;
do
{
// get eeprom vpd primary info
TARGETING::EepromVpdPrimaryInfo eepromData;
if( !(i_target->
tryGetAttr<TARGETING::ATTR_EEPROM_VPD_PRIMARY_INFO>
( eepromData ) ) )
{
TRACFCOMP( g_trac_spd, ERR_MRK"dimmPresenceDetect() "
"Error: no eeprom vpd primary info" );
break;
}
// find i2c master target
TARGETING::TargetService& tS = TARGETING::targetService();
bool exists = false;
tS.exists( eepromData.i2cMasterPath, exists );
if( !exists )
{
TRACFCOMP( g_trac_spd, ERR_MRK"dimmPresenceDetect() "
"i2cMasterPath attribute path doesn't exist");
break;
}
// Since it exists, convert to a target
TARGETING::Target * l_i2cMasterTarget =
tS.toTarget( eepromData.i2cMasterPath );
if( NULL == l_i2cMasterTarget )
{
TRACFCOMP( g_trac_spd, ERR_MRK"dimmPresenceDetect() "
"i2cMasterPath target is NULL");
break;
}
TRACSSCOMP( g_trac_spd, "dimmPresenceDetect() "
"i2c master HUID 0x%X", TARGETING::get_huid(l_i2cMasterTarget));
// Check if present
TARGETING::Target* masterProcTarget = NULL;
TARGETING::targetService().masterProcChipTargetHandle(
masterProcTarget );
// Master proc is taken as always present. Validate other targets.
if (l_i2cMasterTarget != masterProcTarget)
{
l_i2cMasterPresent = FSI::isSlavePresent(l_i2cMasterTarget);
if( !l_i2cMasterPresent )
{
TRACFCOMP( g_trac_spd, ERR_MRK"dimmPresenceDetect() "
"isSlavePresent failed");
break;
}
}
l_i2cMasterPresent = true;
}
while (0);
if (!l_i2cMasterPresent)
{
present = false;
// Invalidate the SPD in PNOR
err = VPD::invalidatePnorCache(i_target);
if (err)
{
TRACFCOMP( g_trac_spd, ERR_MRK"dimmPresenceDetect() "
"Error invalidating SPD in PNOR" );
}
break;
}
#endif
present = spdPresent( i_target );
if( present == false )
{
TRACUCOMP( g_trac_spd, INFO_MRK"dimmPresenceDetect() "
"Dimm was found to be NOT present." );
}
else
{
TRACUCOMP( g_trac_spd, INFO_MRK"dimmPresenceDetect() "
"Dimm was found to be present." );
}
#if defined(CONFIG_DJVPD_READ_FROM_HW) && defined(CONFIG_DJVPD_READ_FROM_PNOR)
if( present )
{
// Check if the VPD data in the PNOR matches the SEEPROM
err = VPD::ensureCacheIsInSync( i_target );
if( err )
{
present = false;
TRACFCOMP( g_trac_spd, ERR_MRK"dimmPresenceDetect() "
"Error during ensureCacheIsInSync (SPD)" );
break;
}
}
else
{
// SPD is not present, invalidate the SPD in PNOR
err = VPD::invalidatePnorCache(i_target);
if (err)
{
TRACFCOMP( g_trac_spd, ERR_MRK"dimmPresenceDetect() "
"Error invalidating SPD in PNOR" );
}
}
#endif
if( present && !err )
{
//Fsp sets PN/SN so if there is none, do it here
if(!INITSERVICE::spBaseServicesEnabled())
{
//populate serial and part number attributes
SPD::setPartAndSerialNumberAttributes( i_target );
}
// Read ATTR_CLEAR_DIMM_SPD_ENABLE attribute
TARGETING::Target* l_sys = NULL;
TARGETING::targetService().getTopLevelTarget(l_sys);
TARGETING::ATTR_CLEAR_DIMM_SPD_ENABLE_type l_clearSPD =
l_sys->getAttr<TARGETING::ATTR_CLEAR_DIMM_SPD_ENABLE>();
// If SPD clear is enabled then write 0's into magic word for
// DIMM_BAD_DQ_DATA keyword
// Note: If there's an error from performing the clearing,
// just log the error and continue.
if (l_clearSPD)
{
size_t l_size = 0;
// Do a read to get the DIMM_BAD_DQ_DATA keyword size
err = deviceRead(i_target, NULL, l_size,
DEVICE_SPD_ADDRESS( DIMM_BAD_DQ_DATA ));
if (err)
{
TRACFCOMP( g_trac_spd, ERR_MRK"dimmPresenceDetect() "
"Error reading DIMM_BAD_DQ_DATA keyword size");
errlCommit( err, VPD_COMP_ID );
}
else
{
// Clear the data
TRACFCOMP( g_trac_spd, "Clearing out BAD_DQ_DATA SPD on "
"DIMM HUID 0x%X",
TARGETING::get_huid(i_target));
uint8_t * l_data = static_cast<uint8_t*>(malloc( l_size ));
memset(l_data, 0, l_size);
err = deviceWrite(i_target, l_data, l_size,
DEVICE_SPD_ADDRESS( DIMM_BAD_DQ_DATA ));
if (err)
{
TRACFCOMP(g_trac_spd, ERR_MRK"dimmPresenceDetect() "
"Error trying to clear SPD on DIMM HUID 0x%X",
TARGETING::get_huid(i_target));
errlCommit( err, VPD_COMP_ID );
}
// Free the memory
if (NULL != l_data)
{
free(l_data);
}
}
}
}
// copy present value into output buffer so caller can read it
memcpy( io_buffer, &present, presentSz );
io_buflen = presentSz;
} while( 0 );
TRACSSCOMP( g_trac_spd, EXIT_MRK"dimmPresenceDetect()" );
return err;
} // end dimmPresenceDetect
