/*
Split the VNIC into a separate context
*/
VOID
HvlPerformCtxSplit(
PHVL pHvl,
PVNIC pVNic
)
{
PHVL_CONTEXT pCtx = pVNic->pHvlCtx, pNewCtx = NULL;
if (pCtx->ulNumVNics > 1)
{
HvlRemoveVNicFromCtx(pHvl, pVNic);
HvlAssignVNicToContext(pHvl, pVNic, &pNewCtx);
/*
Make the new context part of the inactive context list. It will be picked up whenever
we next context switch to it
*/
InsertTailList(&pHvl->InactiveContextList, &pNewCtx->Link);
MpTrace(COMP_HVL, DBG_NORMAL, ("Splitted VNIC (%d, context = %p) into a separate context %p", VNIC_PORT_NO, pCtx, pNewCtx));
}
else
{
// there is nothing to be done
}
}
NDIS_STATUS
Hvl11DeregisterVNic(
_In_ PHVL pHvl,
_In_ PVNIC pVNic
)
{
NDIS_STATUS ndisStatus = NDIS_STATUS_SUCCESS;
HvlLock(pHvl);
HvlRemoveVNicFromCtx(pHvl, pVNic);
// remove it from the list of VNICs that the HVL maintains
RemoveEntryList (&pVNic->VNicLink);
InitializeListHead(&pVNic->VNicLink);
// if there was a cached notification sourced by this VNIC clear it now
if (pHvl->CachedChannelNotification.Header.pSourceVNic == pVNic)
{
HvlClearCachedNotification(pHvl);
}
HvlUnlock(pHvl);
return ndisStatus;
}
/*
Merges pCtxToMerge with pDstCtx. pDstCtx has the merged context
*/
VOID
HvlMergeCtxs(
PHVL pHvl,
PHVL_CONTEXT pCtxToMerge,
PHVL_CONTEXT pDstCtx
)
{
LIST_ENTRY *pEntryVNic = NULL;
PVNIC pVNic = NULL;
VNIC_SIGNATURE Ctx1Sig = HvlCtxGetSignature(pCtxToMerge);
VNIC_SIGNATURE Ctx2Sig = HvlCtxGetSignature(pDstCtx);
// this function should only be called if the signatures are compatible
ASSERT(VNic11AreCompatibleSignatures(&Ctx1Sig, &Ctx2Sig));
MpTrace(COMP_HVL, DBG_NORMAL, ("Merging context %p into context %p. ", pCtxToMerge, pDstCtx));
/*
Go through the list of VNICs and add them to the destination context
*/
pEntryVNic = pCtxToMerge->VNicList.Flink;
while (pEntryVNic != &pCtxToMerge->VNicList)
{
pVNic = CONTAINING_RECORD(pEntryVNic, VNIC, CtxLink);
// remove the VNIC from this context
HvlRemoveVNicFromCtx(pHvl, pVNic);
// move this VNIC to the destination context
HvlAddVNicToCtx(pVNic, pDstCtx);
/*
Make the entry point to the first VNIC in the list
*/
pEntryVNic = pCtxToMerge->VNicList.Flink;
}
ASSERT(IsListEmpty(&pCtxToMerge->VNicList));
// set the merged signature on the destination context
HvlCtxSetSignature(pDstCtx, VNic11MergeSignatures(&Ctx1Sig, &Ctx2Sig));
}
NDIS_STATUS
Hvl11DeregisterHelperPort(
_In_ PHVL pHvl,
_In_ PVNIC pVNic
)
{
NDIS_STATUS ndisStatus = NDIS_STATUS_SUCCESS;
UNREFERENCED_PARAMETER(pVNic);
ASSERT(HvlIsHelperVNic(pHvl, pVNic));
HvlLock(pHvl);
HvlRemoveVNicFromCtx(pHvl, pVNic);
HvlUnlock(pHvl);
return ndisStatus;
}
