[openib-general] NFS/RDMA client *and server* release for Linux 2.6.15

[Talpey, Thomas]

Please ignore this draft message, which somehow escaped my
outbox! The code will be up shortly though.

Sorry for the interruption.

Tom.


At 01:50 PM 3/6/2006, Talpey, Thomas wrote:
>Following up on the client release of Feb 8, we are releasing
>a first-functional NFS/RDMA server for Linux 2.6.15, along with
>client updates based on comments received.
>
>These are both licensed under dual BSD/GPL2 terms, and available
>at the project's Sourceforge site:
>
><http://sourceforge.net/projects/nfs-rdma/>
>
><http://sourceforge.net/project/showfiles.php?group_id=###&package_id=###>
>
>Both client and server employ the native OpenIB verbs API for
>RDMA, and work equally for Infiniband and iWARP.
>
>The client and server implement the IETF draft protocol and fully
>support direct (zero-copy, zero-touch) RDMA transfers at the RPC
>layer. However, the write performance is not yet representative of
>full RDMA operation, due to a bottleneck in the server's use of RDMA
>Read, and at least one data copy in its handoff to the filesystem.
>We will be rectifying the former, and investigating the latter.
>
>Both the client and server have been tested with NFSv3 and pass
>the Connectathon test suite.
>
>Due to the additional components, the procedure for applying the
>patches is substantially more involved, requiring several steps to
>be followed in a particular sequence. Also, the server patches have
>been separated into "framework" and "RDMA" sections, as already
>been done for the client. The package README has details.
>
>The RDMA support in this NFS server release was developed by
>Tom Tucker of Open Grid Computing and we thank him for his efforts
>on this.
>
>At this time, the changes to the Linux NFS server svc framework are
>in effect a first proposal for how RDMA support might be added to the
>code. There are open issues in both how the module linkage should
>be structured, and also how the linkage to existing code be done.
>
>As before, we look forward to comments and feedback! Thanks for all
>of it so far.
>
>Tom Talpey, for the various NFS/RDMA projects.
>
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