volatile uint32_t *rq_db; /**< RQ doorbell record. */
uint32_t csum:1; /**< Enable checksum offloading. */
uint32_t csum_l2tun:1; /**< Same for L2 tunnels. */
+ uint32_t l2tun_offload:1; /**< L2 tunnel offload is enabled. */
struct mlx4_cq mcq; /**< Info for directly manipulating the CQ. */
struct mlx4_rxq_stats stats; /**< Rx queue counters. */
unsigned int socket; /**< CPU socket ID for allocations. */