[openib-general] FMR and how they work

[Dan Bar Dov]

Voltair's IB based ISER indeed uses kDAPL so it will be very simple to atapt it to iWARP.
.
Voltaire's kDAPL supports FMR using PLATFORM registration type, and it is used by the ISER implementation.

Dan

> -----Original Message-----
> From: openib-general-bounces at openib.org 
> [mailto:openib-general-bounces at openib.org] On Behalf Of David M. Brean
> Sent: Tuesday, May 03, 2005 8:59 PM
> To: Libor Michalek
> Cc: Caitlin Bestler; openib-general at openib.org
> Subject: Re: [openib-general] FMR and how they work
> 
> Hello,
> 
> I thought that IB implementations of iSER and NFS over RDMA 
> were using kDAPL.
> 
> -David
> 
> Libor Michalek wrote:
> 
> >On Mon, May 02, 2005 at 01:37:00PM -0700, Caitlin Bestler wrote:
> >  
> >
> >>What advantages is this style of fast memory register 
> supposed to have 
> >>over the work request style found in IB 1.2 and iWARP?
> >>    
> >>
> >
> >  It's faster since all you're doing is rewriting the device's page 
> >table mapping. It would be interesting to see benchmark results if 
> >anyone has them.
> >
> >  
> >
> >>How is this style of fast memory register supposed to be 
> utilized from 
> >>DAPL or ITAPI when they both assume work requests?
> >>    
> >>
> >
> >  It has yet to come up, so far all the consumers are 
> written directly 
> >to IB kernel verbs.
> >
> >-Libor
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