Enable infiniband support via sys-fabric/librdmacm

Packages describing “rdma” as local USE flag

Package “rdma” Flag Description
sys-block/fio Enable infiniband support via sys-fabric/librdmacm
sys-cluster/cinder Enable rdma storage backend support
sys-block/open-iscsi Support iSCSI over RDMA
net-libs/libpcap Enable RDMA capture support using sys-cluster/rdma-core
net-libs/ntirpc Include support for RDMA RPC

All packages providing a “rdma” USE flag (4)