IRDMA_MTU_TO_MSS_IPV6
cm_node->tcp_cntxt.mss = iwdev->vsi.mtu - IRDMA_MTU_TO_MSS_IPV6;
(tmp + IRDMA_MTU_TO_MSS_IPV6) < IRDMA_MIN_MTU_IPV6))
(ieq->vsi->mtu - IRDMA_MTU_TO_MSS_IPV6);