SUNRPC: Update help Kconfig text
Clean up: refresh the help text for Kconfig items related to the sunrpc
module. Remove obsolete URLs, and make the language consistent among
the options.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/Kconfig b/fs/Kconfig
index 55c1a03..8320185 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -1757,15 +1757,32 @@
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_BIND34
bool "Support for rpcbind versions 3 & 4 (EXPERIMENTAL)"
depends on SUNRPC && EXPERIMENTAL
help
- Provides kernel support for querying rpcbind servers via versions 3
- and 4 of the rpcbind protocol. The kernel automatically falls back
- to version 2 if a remote rpcbind service does not support versions
- 3 or 4.
+ RPC requests over IPv6 networks require support for larger
+ addresses when performing an RPC bind. Sun added support for
+ IPv6 addressing by creating two new versions of the rpcbind
+ protocol (RFC 1833).
+
+ This option enables support in the kernel RPC client for
+ querying rpcbind servers via versions 3 and 4 of the rpcbind
+ protocol. The kernel automatically falls back to version 2
+ if a remote rpcbind service does not support versions 3 or 4.
+ By themselves, these new versions do not provide support for
+ RPC over IPv6, but the new protocol versions are necessary to
+ support it.
If unsure, say N to get traditional behavior (version 2 rpcbind
requests only).
@@ -1779,12 +1796,13 @@
select CRYPTO_DES
select CRYPTO_CBC
help
- Provides for secure RPC calls by means of a gss-api
- mechanism based on Kerberos V5. This is required for
- NFSv4.
+ Choose Y here to enable Secure RPC using the Kerberos version 5
+ GSS-API mechanism (RFC 1964).
- Note: Requires an auxiliary userspace daemon which may be found on
- http://www.citi.umich.edu/projects/nfsv4/
+ 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.
@@ -1798,11 +1816,12 @@
select CRYPTO_CAST5
select CRYPTO_CBC
help
- Provides for secure RPC calls by means of a gss-api
- mechanism based on the SPKM3 public-key mechanism.
+ Choose Y here to enable Secure RPC using the SPKM3 public key
+ GSS-API mechansim (RFC 2025).
- Note: Requires an auxiliary userspace daemon which may be found on
- http://www.citi.umich.edu/projects/nfsv4/
+ 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.