[openib-general] FMR and how they work

[Fab Tillier]

> From: Dan Bar Dov [mailto:danb at voltaire.com]
> Sent: Wednesday, May 04, 2005 1:00 AM
> 
> 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.
> 

Why doesn't iSER just use a single un-translated MR for all of physical
memory (like the other kernel ULPs)?  It would then just call the DMA
mapping functions and be done with it - no registration at all is going to
be faster than FMRs.

- Fab