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#include <datatypes.h>
#include <imemory.h>
#include <ilist.h>
#include <ievent.h>
#include <stl_sd.h>
#include <stl_helper.h>
#include <sdi.h>
// only add to list if FirstAttempt
// only get lock while adding to list if NeedLock
static void
QueueQuery(
PQueryDetails pQueryElement,
boolean FirstAttempt,
boolean NeedLock
)
{
if (FirstAttempt)
{
pQueryElement->RetriesLeft = pQueryElement->ControlParameters.RetryCount;
if (NeedLock)
{
LQListInsertTail(pQueryList, &pQueryElement->QueryListItem);
} else {
QListInsertTail(&pQueryList->m_List, &pQueryElement->QueryListItem);
}
}
}
// when called with FirstAttempt == FALSE, pQueryList->m_lock is held
// when called with FirstAttempt == TRUE, pQueryList->m_lock is not held
FSTATUS
SendQueryElement(
PQueryDetails pQueryElement,
boolean FirstAttempt
)
{
uint32 ElementCount;
IBT_DGRM_ELEMENT *pIbtDgrmElement;
FSTATUS Status;
CA_PORT *pCaPort;
_DBG_ENTER_LVL(_DBG_LVL_FUNC_TRACE, SendQueryElement);
ASSERT(pQueryElement);
if (AtomicIncrement(&Outstanding) > g_SdParams.MaxOutstanding)
{
AtomicDecrementVoid(&Outstanding);
_DBG_INFO(("Max outstanding of %u reached, queuing query element %p\n",
g_SdParams.MaxOutstanding, _DBG_PTR(pQueryElement)));
// we will try again later
pQueryElement->QState = ReadyToSend;
QueueQuery(pQueryElement, FirstAttempt, FirstAttempt);
goto done;
}
ElementCount = 1;
Status = iba_gsi_dgrm_pool_get(sa_poolhandle, &ElementCount, &pIbtDgrmElement);
#ifdef SA_ALLOC_DEBUG
if (iba_gsi_dgrm_pool_count(sa_poolhandle) < 50)
{
MsgOut("Dgrm Alloc Status %d\n", Status);
MsgOut("SA Dgrm Pool=%u\n", iba_gsi_dgrm_pool_count(sa_poolhandle));
}
#endif
if (Status != FSUCCESS)
{
_DBG_WARN(("Failed to allocate SA DGRM, Status = <%d>, exiting\n", Status));
// we will try again later
AtomicDecrementVoid(&Outstanding);
pQueryElement->QState = ReadyToSend;
QueueQuery(pQueryElement, FirstAttempt, FirstAttempt);
goto done;
}
pQueryElement->CmdSentTime = GetTimeStamp();
pIbtDgrmElement->Element.pContext = (void *)&pQueryElement->QueryListItem;
SpinLockAcquire(pCaPortListLock);
pCaPort = GetCaPort(pQueryElement->PortGuid);
if (pCaPort == NULL)
{
SpinLockRelease(pCaPortListLock);
_DBG_ERROR(("GetCaPort returned NULL for Port (GUID: %"PRIx64").\n", pQueryElement->PortGuid));
// TBD we should return an error, however callers are not
// prepared, so we queue for retries and timeout
pQueryElement->QState = NotAbleToSend;
QueueQuery(pQueryElement, FirstAttempt, FirstAttempt);
goto cantsend;
}
// TBD - enable this code when ClassPortInfo works in SM
#if 0
// this is necessary to handle a redirected SA
if((pQueryElement->IsSelfCommand) &&
(pQueryElement->SdSentCmd == GetClassportInfo) )
{
pIbtDgrmElement->RemoteLID = pCaPort->Lid;
pIbtDgrmElement->ServiceLevel= pCaPort->ServiceLevel;
pIbtDgrmElement->StaticRate = pCaPort->StaticRate;
pIbtDgrmElement->RemoteQP = pCaPort->RemoteQp;
pIbtDgrmElement->RemoteQKey = pCaPort->RemoteQKey;
pIbtDgrmElement->PkeyIndex = pCaPort->PkeyIndex;
} else {
pIbtDgrmElement->RemoteLID = pCaPort->RedirectedLid;
pIbtDgrmElement->ServiceLevel= pCaPort->RedirectedSL;
pIbtDgrmElement->StaticRate = pCaPort->RedirectedStaticRate;
pIbtDgrmElement->RemoteQP = pCaPort->RedirectedQP;
pIbtDgrmElement->RemoteQKey= pCaPort->RedirectedQKey;
pIbtDgrmElement->PkeyIndex = pCaPort->RedirectedPkeyIndex;
}
#else
pIbtDgrmElement->RemoteLID = pCaPort->Lid;
pIbtDgrmElement->ServiceLevel = pCaPort->ServiceLevel;
pIbtDgrmElement->StaticRate = pCaPort->StaticRate;
pIbtDgrmElement->RemoteQP = pCaPort->RemoteQp;
pIbtDgrmElement->RemoteQKey = pCaPort->RemoteQKey;
// pIbtDgrmElement->PkeyIndex = pCaPort->PkeyIndex;
pIbtDgrmElement->PkeyIndex = pCaPort->DefaultPkeyIndex;
#endif
pIbtDgrmElement->PathBits = 0;
pIbtDgrmElement->PortGuid = pQueryElement->PortGuid;
MemoryCopy( GsiDgrmGetSendMad(pIbtDgrmElement),
pQueryElement->u.pGmp, pQueryElement->TotalBytesInGmp );
pIbtDgrmElement->Element.pBufferList->ByteCount = pQueryElement->TotalBytesInGmp;
if(pCaPort->SdSMAddressValid == TRUE) //Send only if the we have atleast one port active
{
SpinLockRelease(pCaPortListLock);
pQueryElement->QState = WaitingForResult;
// probably not needed, but to be safe,
// hold lock during post_send in case it fails
// once we add to list, others (such as iba_sd_deregister) could
// remove from list or change its state
if (FirstAttempt)
SpinLockAcquire(&pQueryList->m_Lock);
QueueQuery(pQueryElement, FirstAttempt, FALSE);
Status =iba_gsi_post_send( GsiSAHandle, pIbtDgrmElement);
#ifdef SA_ALLOC_DEBUG
if (iba_gsi_dgrm_pool_count(sa_poolhandle) < 50) MsgOut("Dgrm send Status %d\n", Status);
#endif
if (Status != FSUCCESS)
{
pQueryElement->QState = NotAbleToSend;
_DBG_ERROR(("iba_gsi_post_send failed, Status = %d\n", Status));
if (FirstAttempt)
SpinLockRelease(&pQueryList->m_Lock);
goto cantsend;
}
if (FirstAttempt)
SpinLockRelease(&pQueryList->m_Lock);
} else {
SpinLockRelease(pCaPortListLock);
pQueryElement->QState = NotAbleToSend;
QueueQuery(pQueryElement, FirstAttempt, FirstAttempt);
_DBG_INFO(("Unable to Send, Sd SM Address not valid: Port 0x%016"PRIx64"\n", pQueryElement->PortGuid));
goto cantsend;
}
_DBG_INFO(("Sent Query Element %p: %u Outstanding\n",
_DBG_PTR(pQueryElement),
AtomicRead(&Outstanding)));
done:
_DBG_LEAVE_LVL( _DBG_LVL_FUNC_TRACE );
return FSUCCESS;
cantsend:
#ifdef SA_ALLOC_DEBUG
if (iba_gsi_dgrm_pool_count(sa_poolhandle) < 50) MsgOut("Dgrm cant send\n");
#endif
// unable to send for now, cleanup, timer will retry later
AtomicDecrementVoid(&Outstanding);
iba_gsi_dgrm_pool_put( pIbtDgrmElement);
goto done;
}