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/* IBM_PROLOG_BEGIN_TAG
* This is an automatically generated prolog.
*
* $Source: src/usr/hwas/common/hwas.C $
*
* IBM CONFIDENTIAL
*
* COPYRIGHT International Business Machines Corp. 2011-2012
*
* p1
*
* Object Code Only (OCO) source materials
* Licensed Internal Code Source Materials
* IBM HostBoot Licensed Internal Code
*
* The source code for this program is not published or other-
* wise divested of its trade secrets, irrespective of what has
* been deposited with the U.S. Copyright Office.
*
* Origin: 30
*
* IBM_PROLOG_END_TAG
*/
/**
* @file hwas.C
*
* HardWare Availability Service functions.
* See hwas.H for doxygen documentation tags.
*
*/
/******************************************************************************/
// Includes
/******************************************************************************/
#include <stdint.h>
#include <targeting/common/commontargeting.H>
#include <hwas/common/hwas.H>
#include <hwas/common/hwasCommon.H>
#include <hwas/common/hwasError.H>
namespace HWAS
{
using namespace TARGETING;
using namespace HWAS::COMMON;
// trace setup; used by HWAS_DBG and HWAS_ERR macros
HWAS_TD_t g_trac_dbg_hwas = NULL; // debug - fast
HWAS_TD_t g_trac_imp_hwas = NULL; // important - slow
TRAC_INIT(&g_trac_dbg_hwas, "HWAS", 1024 );
TRAC_INIT(&g_trac_imp_hwas, "HWAS_I", 1024 );
/**
* @brief simple helper fn to get and set hwas state to poweredOn,
* present, functional
*
* @param[in] i_target pointer to target that we're looking at
*
* @return none
*
*/
void enableHwasState(Target *i_target, bool i_functional)
{
HwasState hwasState = i_target->getAttr<ATTR_HWAS_STATE>();
hwasState.poweredOn = true;
hwasState.present = true;
hwasState.functional = i_functional;
i_target->setAttr<ATTR_HWAS_STATE>( hwasState );
}
errlHndl_t discoverTargets()
{
HWAS_INF("discoverTargets entry");
errlHndl_t errl = NULL;
// loop through all the targets and set HWAS_STATE to a known default
for (TargetIterator target = targetService().begin();
target != targetService().end();
++target)
{
HwasState hwasState = target->getAttr<ATTR_HWAS_STATE>();
hwasState.poweredOn = false;
hwasState.present = false;
hwasState.functional = false;
hwasState.changedSinceLastIPL = false;
hwasState.gardLevel = 0;
target->setAttr<ATTR_HWAS_STATE>(hwasState);
}
// ASSUMPTIONS:
// CLASS_SYS (exactly 1) - mark as present
// CLASS_ENC (>=1) - mark as present
// TYPE_PROC TYPE_MEMBUF TYPE_DIMM (ALL require hardware query)
// - call platPresenceDetect
// \->children: CLASS_* (NONE require hardware query) - mark as present
do
{
// find CLASS_SYS (the top level target)
Target* pSys;
targetService().getTopLevelTarget(pSys);
HWAS_ASSERT(pSys, "HWAS discoverTargets: no CLASS_SYS TopLevelTarget found");
// mark this as present
enableHwasState(pSys, true);
HWAS_DBG("pSys %.8X (%p) - marked present",
pSys->getAttr<ATTR_HUID>(), pSys);
// find CLASS_ENC
PredicateCTM predEnc(CLASS_ENC);
TargetHandleList pEncList;
targetService().getAssociated( pEncList, pSys,
TargetService::CHILD, TargetService::ALL, &predEnc );
for (TargetHandleList::iterator pEnc_it = pEncList.begin();
pEnc_it != pEncList.end();
pEnc_it++)
{
TargetHandle_t pEnc = *pEnc_it;
// mark it as present
enableHwasState(pEnc, true);
HWAS_DBG("pEnc %.8X (%p) - marked present",
pEnc->getAttr<ATTR_HUID>(), pEnc);
} // for pEnc_it
// find TYPE_PROC, TYPE_MEMBUF and TYPE_DIMM
PredicateCTM predProc(CLASS_CHIP, TYPE_PROC);
PredicateCTM predMembuf(CLASS_CHIP, TYPE_MEMBUF);
PredicateCTM predDimm(CLASS_LOGICAL_CARD, TYPE_DIMM);
PredicatePostfixExpr checkExpr;
checkExpr.push(&predProc).push(&predMembuf).Or().push(&predDimm).Or();
TargetHandleList pCheckPres;
targetService().getAssociated( pCheckPres, pSys,
TargetService::CHILD, TargetService::ALL, &checkExpr );
// pass this list to the hwas platform-specific api where
// pCheckPres will be modified to only have present targets
HWAS_DBG("pCheckPres size: %d", pCheckPres.size());
errl = platPresenceDetect(pCheckPres);
HWAS_DBG("pCheckPres size: %d", pCheckPres.size());
if (errl != NULL)
{
break; // break out of the do/while so that we can return
}
// no errors - keep going
// for each, read their ID/EC level. if that works,
// mark them and their descendants as present and functional
for (TargetHandleList::iterator pTarget_it = pCheckPres.begin();
pTarget_it != pCheckPres.end();
pTarget_it++
)
{
TargetHandle_t pTarget = *pTarget_it;
// read Chip ID/EC data from these physical chips
if (pTarget->getAttr<ATTR_CLASS>() == CLASS_CHIP)
{
errl = platReadIDEC(pTarget);
}
bool isFunctional;
if (!errl)
{ // no error
isFunctional = true;
}
else
{ // read of ID/EC failed even tho we were present..
isFunctional = false;
// commit the error but keep going
errlCommit(errl, HWAS_COMP_ID);
// errl is now NULL
}
HWAS_DBG("pTarget %.8X (%p) - detected present %s functional",
pTarget->getAttr<ATTR_HUID>(), pTarget,
isFunctional ? "and" : "NOT");
// set HWAS state to show it's present
enableHwasState(pTarget, isFunctional);
// now need to mark all of this target's
// physical descendants as present and NOT functional
TargetHandleList pDescList;
targetService().getAssociated( pDescList, pTarget,
TargetService::CHILD, TargetService::ALL);
for (TargetHandleList::iterator pDesc_it = pDescList.begin();
pDesc_it != pDescList.end();
pDesc_it++)
{
TargetHandle_t pDesc = *pDesc_it;
enableHwasState(pDesc, isFunctional);
HWAS_DBG("pDesc %.8X (%p) - marked present %s functional",
pDesc->getAttr<ATTR_HUID>(), pDesc,
isFunctional ? "and" : "NOT");
}
} // for pTarget_it
} while (0);
if (errl == NULL)
{
HWAS_INF("discoverTargets exit with no error");
}
else
{
HWAS_ERR("discoverTargets returning errl %p", errl);
}
return errl;
} // discoverTargets
}; // end namespace
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