XGMII end of packet

Hi, Can any one please clear my understanding about the xgmii end of packet detection. The IEEE draft P802.3ae.pdf XGMII(RS): section 46.2.5 defines the end of packet as "last sequential data octet preceding the terminate control character or other control character causing a change from DATA_VALID to DATA_NOT_VALID". Does this mean that MAC should stop packet collection as soon as it finds a control character other than