[openib-general] Reserved L_Key API

[Tillier, Fabian]

> From: Roland Dreier [mailto:roland at topspin.com]
> Sent: Tuesday, September 14, 2004 9:59 PM
> 
> I don't think consumers ever really want to pass remote entities an
> R_Key with translation off (which would allow RDMA to arbitrary
> addreses).  I think the solution for creating R_Keys is FMRs (either
> Tavor-style or verbs extension-style).

Are the ramifications of such an RKEY any worse than those of locally
attached DMA-capable adapters?  If your FC HBA goes haywire and decides
to write all over memory, there's not much you can do.  SRP just uses IB
as a bus extension of sorts.

What am I missing?

Thanks,

- Fab