config SUNRPC tristate config SUNRPC_GSS tristate config SUNRPC_XPRT_RDMA tristate depends on SUNRPC && INFINIBAND && EXPERIMENTAL default SUNRPC && INFINIBAND help This option enables an RPC client transport capability that allows the NFS client to mount servers via 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. config SUNRPC_REGISTER_V4 bool "Register local RPC services via rpcbind v4 (EXPERIMENTAL)" depends on SUNRPC && EXPERIMENTAL default n help Sun added support for registering RPC services at an IPv6 address by creating two new versions of the rpcbind protocol (RFC 1833). This option enables support in the kernel RPC server for registering kernel RPC services via version 4 of the rpcbind protocol. If you enable this option, you must run a portmapper daemon that supports rpcbind protocol version 4. Serving NFS over IPv6 from knfsd (the kernel's NFS server) requires that you enable this option and use a portmapper that supports rpcbind version 4. If unsure, say N to get traditional behavior (register kernel RPC services using only rpcbind version 2). Distributions using the legacy Linux portmapper daemon must say N here. config RPCSEC_GSS_KRB5 tristate "Secure RPC: Kerberos V mechanism (EXPERIMENTAL)" depends on SUNRPC && EXPERIMENTAL select SUNRPC_GSS select CRYPTO select CRYPTO_MD5 select CRYPTO_DES select CRYPTO_CBC help 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 N. config RPCSEC_GSS_SPKM3 tristate "Secure RPC: SPKM3 mechanism (EXPERIMENTAL)" depends on SUNRPC && EXPERIMENTAL select SUNRPC_GSS select CRYPTO select CRYPTO_MD5 select CRYPTO_DES select CRYPTO_CAST5 select CRYPTO_CBC help Choose Y here to enable Secure RPC using the SPKM3 public key GSS-API mechansim (RFC 2025). Secure RPC calls with SPKM3 require an auxiliary userspace daemon which may be found in the Linux nfs-utils package available from http://linux-nfs.org/. If unsure, say N.