Re: TCP RDMA option to accelerate NFS, CIFS, SCSI, etc.

["Justin T. Gibbs" <gibbs@freebsd.org>]

>   Date: Thu, 24 Feb 2000 14:59:38 -0800 (PST)
>   From: Erik Nordmark <Erik.Nordmark@Eng.Sun.COM>
>
>As an aside I think the RDMA proposal has a lot of holes too.  For
>example, there are in-kernel HTTP accelerators that do the complete
>client header parse and initial packet response in the hw interrupt
>handler.  There are no user buffers involved, and static response
>data is DMA'd directly from the filesystem page cache.

In the case of a server response, RDMA benefits the client, not the
server, so I fail to see why your example is problematic.  Zero copy
send is not what this standard addresses.

--
Justin