VOID
VNic11SendCompletePackets(
__in PVNIC pVNic,
__in PMP_TX_MSDU PacketList,
__in ULONG ulNumPkts,
__in ULONG SendCompleteFlags
)
{
BOOLEAN fDispatchLevel = SendCompleteFlags & NDIS_SEND_COMPLETE_FLAGS_DISPATCH_LEVEL ? TRUE : FALSE;
MpTrace(COMP_HVL, DBG_LOUD, ("VNic(%d): Send completion called for %d packets \n", VNIC_PORT_NO, ulNumPkts));
Port11SendCompletePackets(pVNic->pvPort, PacketList, SendCompleteFlags);
VNicLockAtDispatch(pVNic, fDispatchLevel);
/*
Remove the context switch ref counts that we added for these packets. Context switches
can happen once it goes to zero
*/
VNicDecCtxSRef(pVNic, ulNumPkts, REF_SEND_PKTS);
// account for the outstanding sends that have now been completed
VNicDecOutstandingSends(pVNic, ulNumPkts);
// also handle any sends that had been queued
if (!PktQueueIsEmpty(&pVNic->TxQueue))
{
VNicProcessQueuedPkts(pVNic, fDispatchLevel);
}
VNicUnlockAtDispatch(pVNic, fDispatchLevel);
}
VOID
VNicCancelPendingSends(
__in PVNIC pVNic
)
{
PMP_TX_MSDU pendingPackets = NULL;
ASSERT(VNicIsLocked(pVNic));
do
{
if (!PktQueueIsEmpty(&pVNic->TxQueue))
{
MpTrace(COMP_HVL, DBG_NORMAL, ("VNic(%d): Cancelling %d sends\n", VNIC_PORT_NO, PktQueueDepth(&pVNic->TxQueue)));
pendingPackets = DeQueuePktList(&pVNic->TxQueue);
// give up lock before calling into the port
VNicUnlock(pVNic);
Port11SendCompletePackets(pVNic->pvPort, pendingPackets, 0);
VNicLock(pVNic);
}
else
{
MpTrace(COMP_HVL, DBG_NORMAL, ("VNic(%d): No sends are pending. Nothing to cancel\n", VNIC_PORT_NO));
}
} while (FALSE);
}
/*
This function releases the lock during its processing
*/
VOID
VNicProcessQueuedPkts(
_In_ PVNIC pVNic,
BOOLEAN fDispatchLevel
)
{
ULONG ulNumPkts = 0;
PMP_TX_MSDU PacketList = NULL;
BOOLEAN fFailSends = FALSE;
ASSERT(VNicIsLocked(pVNic));
ASSERT(VNicIsActive(pVNic));
ASSERT(!PktQueueIsEmpty(&pVNic->TxQueue));
do
{
if (VNicIsInReset(pVNic))
{
fFailSends = TRUE;
ulNumPkts = PktQueueDepth(&pVNic->TxQueue);
PacketList = DeQueuePktList(&pVNic->TxQueue);
MpTrace(COMP_HVL, DBG_NORMAL, ("VNIC(%d) is in reset. Failing %d sends. \n", VNIC_PORT_NO, ulNumPkts));
break;
}
if (Hw11CanTransmit(pVNic->pvHwContext))
{
ulNumPkts = PktQueueDepth(&pVNic->TxQueue);
PacketList = DeQueuePktList(&pVNic->TxQueue);
MpTrace(COMP_HVL, DBG_NORMAL, ("VNIC(%d): Processing %d queued packets \n", VNIC_PORT_NO, ulNumPkts));
VNicSendPktsToHw(pVNic, ulNumPkts, PacketList, 0);
}
else
{
MpTrace(COMP_HVL, DBG_NORMAL, ("VNIC(%d): The hardware is not yet ready to accept packets\n", VNIC_PORT_NO));
}
} while (FALSE);
if (fFailSends)
{
_Analysis_assume_lock_held_((& pVNic->Lock)->SpinLock);
VNicUnlockAtDispatch(pVNic, fDispatchLevel);
Port11SendCompletePackets(pVNic->pvPort, PacketList, 0);
VNicLockAtDispatch(pVNic, fDispatchLevel);
}
return;
}
