Re: Different NFSSVC_MAXBLKSIZE for udp and tcp clients?

[Greg Banks <gnb@melbourne.sgi.com>]

James Pearson wrote:
> 
> Is it possible to force a different maximum [rw]size on the server
> depending on whether the client uses udp or tcp?

If someone writes the code, e.g. some new export options?

> Currently, when a client NFS mounts a file system without specifying a
> [rw]size, it defaults to whatever NFSSVC_MAXBLKSIZE was defined as (at
> compile time) on the server. However, this is the same for udp and tcp
> clients.

Also NFSSVC_MAXBLKSIZE acts as a limit even when [wr]size is specifically
set in mount options.

> What I would like is to have a smaller default [rw]size for udp clients,
> but allow tcp clients to use 32k.

What I would like is to allow UDP clients to use up to 48K and TCP
clients to use up to 4M.  And on 2.4 kernels, ensure that MAXBLKSIZE
is at least PAGE_CACHE_SIZE.

Greg.
-- 
Greg Banks, R&D Software Engineer, SGI Australian Software Group.
I don't speak for SGI.


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