[openib-general] iwarp: whats a pkey?

[Hal Rosenstock]

On Fri, 2006-01-27 at 15:32, Roland Dreier wrote:
>     Roland> No, I think trying to create a mapping is a bad idea.  The
>     Roland> semantics of VLANs and IB partitions are sufficiently
>     Roland> different that it's probably better to treat each concept
>     Roland> natively.
> 
>     Steve> Roland, can you expand on this some?
> 
> I don't think transport neutral code should be dealing with either
> P_Keys or VLANs.  The Linux model for handling VLANs is that each VLAN
> has a separate network interface.  So an iWARP consumer should never
> deal with VLANs, just with a routing choice of interfaces.
> 
> Similarly if a consumer is using the iWARP-emulation CM for IB, then
> the P_Key will come from the IPoIB interface.  Only native IB
> consumers that understand partitions ever have to deal with P_Keys.

What about a gateway between iWARP and IB ? Would it need the mappings
between VLAN and IB partition ? If so, I would presume that is at a
layer above what you are talking about.

-- Hal

>  - R.
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