/**
* @copydoc INTNETTRUNKIFPORT::pfnXmit
*/
static DECLCALLBACK(int) vboxNetAdpPortXmit(PINTNETTRUNKIFPORT pIfPort, PINTNETSG pSG, uint32_t fDst)
{
PVBOXNETADP pThis = IFPORT_2_VBOXNETADP(pIfPort);
int rc = VINF_SUCCESS;
/*
* Input validation.
*/
AssertPtr(pThis);
AssertPtr(pSG);
Assert(pThis->MyPort.u32Version == INTNETTRUNKIFPORT_VERSION);
Log(("vboxNetAdpPortXmit: outgoing packet (len=%d)\n", pSG->cbTotal));
/*
* Do a retain/busy, invoke the OS specific code.
*/
RTSpinlockAcquire(pThis->hSpinlock);
if (vboxNetAdpGetState(pThis) != kVBoxNetAdpState_Active)
{
RTSpinlockRelease(pThis->hSpinlock);
Log(("vboxNetAdpReceive: Dropping incoming packet for inactive interface %s.\n",
pThis->szName));
return VERR_INVALID_STATE;
}
vboxNetAdpRetain(pThis);
vboxNetAdpBusy(pThis);
RTSpinlockRelease(pThis->hSpinlock);
rc = vboxNetAdpPortOsXmit(pThis, pSG, fDst);
vboxNetAdpIdle(pThis);
vboxNetAdpRelease(pThis);
return rc;
}
/**
* Forwards scatter/gather list to internal network and decreases busy and ref counters.
*
* @param pThis The instance.
*/
DECLHIDDEN(void) vboxNetAdpReceive(PVBOXNETADP pThis, PINTNETSG pSG)
{
/*
* Input validation.
*/
AssertPtr(pThis);
AssertPtr(pSG);
AssertPtr(pThis->pSwitchPort);
Assert(pThis->MyPort.u32Version == INTNETTRUNKIFPORT_VERSION);
Log(("vboxNetAdpReceive: forwarding packet to internal net...\n"));
pThis->pSwitchPort->pfnRecv(pThis->pSwitchPort, pSG, INTNETTRUNKDIR_HOST);
vboxNetAdpIdle(pThis);
vboxNetAdpRelease(pThis);
}
/**
* Decreases busy and ref counters.
*
* @param pThis The instance.
*/
DECLHIDDEN(void) vboxNetAdpCancelReceive(PVBOXNETADP pThis)
{
Log(("vboxNetAdpCancelReceive: cancelled.\n"));
vboxNetAdpIdle(pThis);
vboxNetAdpRelease(pThis);
}
