Several changes have been done to the driver code:
- adjustments against future changes in if_ixl driver,
- adjustments preparing for making VIMAGE a default option in kernel configuration,
- adding support for BSD_RDMA_4_9 branch of FreeBSD-CURRENT kernel,
- implementing IPv6 support for BSD_RDMA_4_9 branch,
- fix minor problem with traffic on tagged vLAN,
- fix for fast memory registration issue with stag update.