Re: Merge plans for RPC/RDMA? (Was: Re: [NFS] [PATCH 000 of 14] knfsd:Preparation for IPv6 support in NFS server.)

From: Chuck Lever
Date: Fri Apr 13 2007 - 18:47:59 EST


Mike Snitzer wrote:
On 2/2/07, Chuck Lever <chuck.lever@xxxxxxxxxx> wrote:
Roland Dreier wrote:
> > They are mostly from Chuck Level and make preparating for IPv6 support
> > in the NFS server.
> > They are *not* for 2.6.20, but should be ok for .21.
>
> Out of curiousity, does this patch series reduce the delta between the
> NFS/RDMA tree and mainline Linux? In other words does this bring
> NFS/RDMA closer to merging?

Hi Roland-

The client side support for an RPC/RDMA module is almost completely
integrated into mainline. There is still a minimal set of patches
required to support alternate transports in loadable kernel modules
which Trond has indicated he will integrate when the RPC/RDMA transport
is ready to be integrated.

Hi Chuck,

I must be missing something because I don't see _any_ trace of the
core RPC over RDMA support (xprtrdma et al), your RPC Transport
Switch, or any of the other supporting changes in mainline. Could
you, or others, please clarify the plan for merging RPC/RDMA?

The RPC transport switch patches are almost fully integrated into mainline. The xprtrdma piece is what is not there yet.

At this time I'm not aware of a plan to integrate server-side support
for NFS/RDMA. Perhaps the NetApp RDMA developers could respond.

Do you mean the NFS/RDMA server code from Tom Tucker of Open Grid
Computing? Why wouldn't this code be included?

Tom's code hasn't been reviewed by the community. begin:vcard
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