net/sunrpc/Kconfig v3.0-rc7

SUNRPC_XPRT_RDMA

This option allows the NFS client and server to support
an RDMA-enabled transport.

To compile RPC client RDMA transport support as a module,
choose M here: the module will be called xprtrdma.

If unsure, say N.

RPCSEC_GSS_KRB5

Secure RPC: Kerberos V mechanism

Choose Y here to enable Secure RPC using the Kerberos version 5
GSS-API mechanism (RFC 1964).

Secure RPC calls with Kerberos require an auxiliary user-space
daemon which may be found in the Linux nfs-utils package
available from http://linux-nfs.org/.  In addition, user-space
Kerberos support should be installed.

If unsure, say Y.