/* STP */        if ((portInfo->featureCapability & IX_ETH_DB_SPANNING_TREE_PROTOCOL) != 0)        {            ixEthDBSpanningTreeBlockingStateSet((IxEthDBPortId) portID, FALSE);        }        /* Firewall */        if ((portInfo->featureCapability & IX_ETH_DB_FIREWALL) != 0)        {            ixEthDBFirewallModeSet((IxEthDBPortId) portID, IX_ETH_DB_FIREWALL_BLACK_LIST);            ixEthDBFirewallTableDownload((IxEthDBPortId) portID);            ixEthDBFirewallInvalidAddressFilterEnable((IxEthDBPortId) portID, FALSE);        }        /* Frame size filter */        ixEthDBFilteringPortMaximumFrameSizeSet((IxEthDBPortId) portID, IX_ETH_DB_DEFAULT_FRAME_SIZE);        /* WiFi */        if ((portInfo->featureCapability & IX_ETH_DB_WIFI_HEADER_CONVERSION) != 0)        {            ixEthDBWiFiConversionTableDownload((IxEthDBPortId) portID);        }        /* save and disable the learning feature bit */        learningEnabled          = portInfo->featureStatus & IX_ETH_DB_LEARNING;        portInfo->featureStatus &= ~IX_ETH_DB_LEARNING;    }    else    {        /* save the learning feature bit */        learningEnabled          = portInfo->featureStatus & IX_ETH_DB_LEARNING;    }    SET_EMPTY_DEPENDENCY_MAP(triggerPorts);    ixEthDBUpdateLock();    /* wipe out current entries for this port */    BUSY_RETRY(ixEthDBInitHashIterator(&dbHashtable, &iterator));    while (IS_ITERATOR_VALID(&iterator))    {        MacDescriptor *descriptor =  (MacDescriptor *) iterator.node->data;        /* check if the port match. If so, remove the entry  */        if (descriptor->portID == portID                && (descriptor->type == IX_ETH_DB_FILTERING_RECORD || descriptor->type == IX_ETH_DB_FILTERING_VLAN_RECORD)                && !descriptor->recordData.filteringData.staticEntry)        {            /* delete entry */            BUSY_RETRY(ixEthDBRemoveEntryAtHashIterator(&dbHashtable, &iterator));            /* add port to the set of update trigger ports */            JOIN_PORT_TO_MAP(triggerPorts, portID);        }        else        {            /* move to the next record */            BUSY_RETRY(ixEthDBIncrementHashIterator(&dbHashtable, &iterator));        }    }    if (ixEthDBPortDefinitions[portID].type == IX_ETH_NPE)    {        if (portInfo->updateMethod.searchTree != NULL)        {            ixEthDBFreeMacTreeNode(portInfo->updateMethod.searchTree);            portInfo->updateMethod.searchTree = NULL;        }        ixEthDBNPEUpdateHandler(portID, IX_ETH_DB_FILTERING_RECORD);    }    /* mark as disabled */    portInfo->enabled = FALSE;    /* disable updates unless the user has specifically altered the default behavior */    if (ixEthDBPortDefinitions[portID].type == IX_ETH_NPE)    {        if (!portInfo->updateMethod.userControlled)        {            portInfo->updateMethod.updateEnabled = FALSE;        }        /* make sure we re-initialize the NPE learning tree when the port is re-enabled */        portInfo->updateMethod.treeInitialized = FALSE;    }    ixEthDBUpdateUnlock();    /* restore learning feature bit */    portInfo->featureStatus |= learningEnabled;    /* if we've removed any records or lost any events make sure to force an update */    IS_EMPTY_DEPENDENCY_MAP(result, triggerPorts);    if (!result)    {        ixEthDBUpdatePortLearningTrees(triggerPorts);    }    return IX_ETH_DB_SUCCESS;}/** * @brief sends the updated maximum Tx/Rx frame lengths to the NPE * * @param portID ID of the port to update * * @return IX_ETH_DB_SUCCESS if the update completed * successfully or an appropriate error message otherwise * * @internal */IX_ETH_DB_PRIVATEIxEthDBStatus ixEthDBPortFrameLengthsUpdate(IxEthDBPortId portID){    IxNpeMhMessage message;    PortInfo *portInfo = &ixEthDBPortInfo[portID];    IX_STATUS result;    FILL_SETMAXFRAMELENGTHS_MSG(message, portID, portInfo->maxRxFrameSize, portInfo->maxTxFrameSize);    IX_ETHDB_SEND_NPE_MSG(IX_ETH_DB_PORT_ID_TO_NPE(portID), message, result);    return result;}/** * @brief sets the port maximum Rx frame size * * @param portID ID of the port to set the frame size on * @param maximumRxFrameSize maximum Rx frame size * * This function updates the internal data structures and * calls ixEthDBPortFrameLengthsUpdate() for NPE update. * * This function is fully documented in the main header * file, IxEthDB.h. * * @return IX_ETH_DB_SUCCESS if the operation was * successfull or an appropriate error message otherwise */IX_ETH_DB_PUBLICIxEthDBStatus ixEthDBFilteringPortMaximumRxFrameSizeSet(IxEthDBPortId portID, UINT32 maximumRxFrameSize){    IX_ETH_DB_CHECK_PORT_EXISTS(portID);    IX_ETH_DB_CHECK_SINGLE_NPE(portID);	if (!ixEthDBPortInfo[portID].initialized)	{		return IX_ETH_DB_PORT_UNINITIALIZED;	}    if (ixEthDBPortDefinitions[portID].type == IX_ETH_NPE)    {	if ((maximumRxFrameSize < IX_ETHDB_MIN_NPE_FRAME_SIZE) ||	    (maximumRxFrameSize > IX_ETHDB_MAX_NPE_FRAME_SIZE))	{	    return IX_ETH_DB_INVALID_ARG;	}    }    else    {        return IX_ETH_DB_NO_PERMISSION;    }    /* update internal structure */    ixEthDBPortInfo[portID].maxRxFrameSize = maximumRxFrameSize;    /* update the maximum frame size in the NPE */    return ixEthDBPortFrameLengthsUpdate(portID);}/** * @brief sets the port maximum Tx frame size * * @param portID ID of the port to set the frame size on * @param maximumTxFrameSize maximum Tx frame size * * This function updates the internal data structures and * calls ixEthDBPortFrameLengthsUpdate() for NPE update. * * This function is fully documented in the main header * file, IxEthDB.h. * * @return IX_ETH_DB_SUCCESS if the operation was * successfull or an appropriate error message otherwise */IX_ETH_DB_PUBLICIxEthDBStatus ixEthDBFilteringPortMaximumTxFrameSizeSet(IxEthDBPortId portID, UINT32 maximumTxFrameSize){    IX_ETH_DB_CHECK_PORT_EXISTS(portID);    IX_ETH_DB_CHECK_SINGLE_NPE(portID);	if (!ixEthDBPortInfo[portID].initialized)	{		return IX_ETH_DB_PORT_UNINITIALIZED;	}    if (ixEthDBPortDefinitions[portID].type == IX_ETH_NPE)    {	if ((maximumTxFrameSize < IX_ETHDB_MIN_NPE_FRAME_SIZE) ||	    (maximumTxFrameSize > IX_ETHDB_MAX_NPE_FRAME_SIZE))	{	    return IX_ETH_DB_INVALID_ARG;	}    }    else    {        return IX_ETH_DB_NO_PERMISSION;    }    /* update internal structure */    ixEthDBPortInfo[portID].maxTxFrameSize = maximumTxFrameSize;    /* update the maximum frame size in the NPE */    return ixEthDBPortFrameLengthsUpdate(portID);}/** * @brief sets the port maximum Tx and Rx frame sizes * * @param portID ID of the port to set the frame size on * @param maximumFrameSize maximum Tx and Rx frame sizes * * This function updates the internal data structures and * calls ixEthDBPortFrameLengthsUpdate() for NPE update. * * Note that both the maximum Tx and Rx frame size are set * to the same value. This function is kept for compatibility * reasons. * * This function is fully documented in the main header * file, IxEthDB.h. * * @return IX_ETH_DB_SUCCESS if the operation was * successfull or an appropriate error message otherwise */IX_ETH_DB_PUBLICIxEthDBStatus ixEthDBFilteringPortMaximumFrameSizeSet(IxEthDBPortId portID, UINT32 maximumFrameSize){    IX_ETH_DB_CHECK_PORT_EXISTS(portID);    IX_ETH_DB_CHECK_SINGLE_NPE(portID);    if (!ixEthDBPortInfo[portID].initialized)    {        return IX_ETH_DB_PORT_UNINITIALIZED;    }    if (ixEthDBPortDefinitions[portID].type == IX_ETH_NPE)    {	if ((maximumFrameSize < IX_ETHDB_MIN_NPE_FRAME_SIZE) ||	    (maximumFrameSize > IX_ETHDB_MAX_NPE_FRAME_SIZE))	{	    return IX_ETH_DB_INVALID_ARG;	}    }    else    {        return IX_ETH_DB_NO_PERMISSION;    }    /* update internal structure */    ixEthDBPortInfo[portID].maxRxFrameSize = maximumFrameSize;    ixEthDBPortInfo[portID].maxTxFrameSize = maximumFrameSize;    /* update the maximum frame size in the NPE */    return ixEthDBPortFrameLengthsUpdate(portID);}/** * @brief sets the MAC address of an NPE port * * @param portID port ID to set the MAC address on * @param macAddr pointer to the 6-byte MAC address * * This function is called by the EthAcc * ixEthAccUnicastMacAddressSet() and should not be * manually invoked unless required by special circumstances. * * @return IX_ETH_DB_SUCCESS if the operation succeeded * or an appropriate error message otherwise */IX_ETH_DB_PUBLICIxEthDBStatus ixEthDBPortAddressSet(IxEthDBPortId portID, IxEthDBMacAddr *macAddr){    IxNpeMhMessage message;    IxOsalMutex *ackPortAddressLock;    IX_STATUS result;    /* use this macro instead CHECK_PORT       as the port doesn't need to be enabled */    IX_ETH_DB_CHECK_PORT_EXISTS(portID);    IX_ETH_DB_CHECK_REFERENCE(macAddr);    if (!ixEthDBPortInfo[portID].initialized)    {        return IX_ETH_DB_PORT_UNINITIALIZED;    }    ackPortAddressLock = &ixEthDBPortInfo[portID].npeAckLock;    /* Operation stops here when Ethernet Learning is not enabled */    if(IX_FEATURE_CTRL_SWCONFIG_DISABLED ==       ixFeatureCtrlSwConfigurationCheck(IX_FEATURECTRL_ETH_LEARNING))    {        return IX_ETH_DB_SUCCESS;    }    IX_ETH_DB_CHECK_SINGLE_NPE(portID);    /* exit if the port is not an Ethernet NPE */    if (ixEthDBPortDefinitions[portID].type != IX_ETH_NPE)    {        return IX_ETH_DB_INVALID_PORT;    }    /* populate message */    FILL_SETPORTADDRESS_MSG(message, portID, macAddr->macAddress);    IX_ETH_DB_SUPPORT_TRACE("DB: (Support) Sending SetPortAddress on port %d...\n", portID);    /* send a SetPortAddress message */    IX_ETHDB_SEND_NPE_MSG(IX_ETH_DB_PORT_ID_TO_NPE(portID), message, result);    if (result == IX_SUCCESS)    {        ixEthDBPortInfo[portID].macAddressUploaded = TRUE;    }    return result;}