[openib-general] Port of NetPIPE-3.6.2 to OpenIB userspace verbs

[Troy Benjegerdes]

On Wed, Mar 16, 2005 at 08:58:54AM -0000, Paul Baxter wrote:
> From: "Troy Benjegerdes" <hozer at hozed.org>
> >Once I get it built and tested locally, I'll probably stick some results
> >and a link up at http://scl.ameslab.gov/Projects/InfiniBand/
> >
> >Sooo... what's the easiest way for me to test this if I have opterons
> >with 2.6.11.4 kernels?
> >
> >(aka, just replace drivers/infiniband from the roland-uverbs branch? And
> >does anyone have a clean way of building all the userspace stuff? What
> >I've seen so far is pretty tedious)
> 
> Troy,
> 
> While I appreciate your keenness , I think its a little unfair to criticise 
> the build status and organisation of code that is still being written and 
> is subject to change. I'd far rather everyone gets a working core before 
> worrying so much about how it might be packaged. That does need to be 
> addressed, of course.
> 
> Your comments at your URL regarding complexity and size of the software 
> stack making progress slow are IMHO unfair to openib.
> They've worked hard on getting a streamlined set of functionality into the 
> kernel and now need to finish off key parts of userspace support and only 
> then 'package' it so that you will find it easier to compile and test.

Actually, my comments about InfiniBand software refferred to all the
previous vendor "released" software stacks.

It's been about two days since I started looking at this stuff, and I'm
now able to run Netpipe. I haven't crashed the kernel once from the
infiniband driver. I'm quite impressed with openib progress.

OpenIB is relatively modular, and the individual modules are nicely
named, and much smaller than anything else I've seen for IB drivers. In
fact, the code size of the IB support looks to be smaller than the ipv6
module.