unsigned int csum:1; /* Enable checksum offloading. */
unsigned int csum_l2tun:1; /* Same for L2 tunnels. */
unsigned int vlan_strip:1; /* Enable VLAN stripping. */
+ unsigned int crc_present:1; /* CRC must be subtracted. */
union {
struct rxq_elt_sp (*sp)[]; /* Scattered RX elements. */
struct rxq_elt (*no_sp)[]; /* RX elements. */