Re: [PATCH v2] RDMA/CMA: fix iWARP adapter TCP port space usage

Jason Gunthorpe
2010-06-12T00:04:31Z

On Fri, Jun 11, 2010 at 06:40:33PM -0500, Steve Wise wrote:

> No, everything does not work without this patch. Go read the thread
> from 2007 (I posted the URL to it on this thread). I describe exactly
> how an application like MPI will get incorrect behavior due to port
> space collisions on iWARP HW.

I guess I missed the fact that OFED included this patch, rather than
relying on the other administratively configured schemes you
originally outlined. I was opining that nobody was complaining about
the administrative stuff.. but of course nobody complains, they don't
have to do it :(

A seperate IP for iWarp always seemed to me to be the way forward on
this. And I do mean seperate, as in TCP packets for this IP are never
sent into the net stack seperate :|

Jason