FYI, you can find a kDAPL implementation for OpenIB at
svn/gen2/users/jlentini/linux-kernel
and a uDAPL implementation for OpenIB at
svn/gen2/users/jlentini/userspace
I can answer any questions you might have about these ULPs.
I'm not familiar with NAL, so I can't comment on which ULP is right
for you.
On Wed, 6 Jul 2005, wangxigui wrote:
Thank you very much!
I'll read the materials that you supply.
I have not described my plan clearly. I don't konw how to run lustre
on IB. Neither do I konw the lustre running in kernel space or user
space. Now the lustre NAL does not supports IB vapi. If I use IPoIB,
it works. But it doen not take take advantage of RDMA. Supporse
lustre NAL invoke SDP or uDAP, RDMA is enable.
Invocation of Verb API to realize lustre NAL is my target. The SDP or
uDAP is first step.
Clem Cole said:
The quick answer here is none of SDP, iSER/SRP or uDAPL for different
reasons on each case
kDAPL is the kernel API that is designed to handle a kernel application
such as NFS, Lustre or the like. See:
http://www.datcollaborative.org/kdapl.html
There is are already implementations of NFS/RDMA available:
http://www.sourceforge.net/projects/nfs-rdma
This should give you some hints on how to a distrubuted file system
uses the kDAPL interface.
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED]
Sent: Wednesday, July 06, 2005 9:26 AM
To: openib-general
Subject: [openib-general] how to choose appropriate ULPs for application
Hello！
We plan to run lustre on InfiniBand. But now lustre does not support
IB.
I know noting about the IB stack. So I think the IB Upper Layer
Protocol(SDP, DAP) could be used to transport data for lustre.
But there are too many ULPs over IB. I know little about them. As far as
I konw, iSER/SRP is for SCSI command transportation. So, it seems both
SDP and uDAP are OK for my plan. I cant tell the difference between them.
Which one is better, SDP or DAP? I don't konw how to choose?
Any suggestion is appreciated!
致
礼！
Sincerely yours
Wang Xigui 王锡贵
2005-07-06
--------------------
Computer Architecture Laboratory
Institute of Computing Technology
Chinese Academy of Sciences
Beijing,P.R.China
Zip code: 100080
Tel: +86-10-62564394(office)
Email: [EMAIL PROTECTED]
--
Sincerely yours
Wang Xigui 王锡贵
2005-07-06
--------------------
Computer Architecture Laboratory
Institute of Computing Technology
Chinese Academy of Sciences
Beijing,P.R.China
Zip code: 100080
Tel: +86-10-62565533-9314(office)
Email: [EMAIL PROTECTED]
--
Sincerely yours
Wang Xigui 王锡贵
2005-07-06
--------------------
Computer Architecture Laboratory
Institute of Computing Technology
Chinese Academy of Sciences
Beijing,P.R.China
Zip code: 100080
Tel: +86-10-62565533-9314(office)
Email: [EMAIL PROTECTED]
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