[openib-general] path query question

[Hal Rosenstock]

Hi Eitan,

On Mon, 2007-01-01 at 15:10, Eitan Zahavi wrote:
> Hi Hal,
> 
>  
> 
> Happy new year! 

Same to you :-)

> We are working on SDP HA and wanted to implement APM for OFED 1.2
> 
> What would be the best way to utilize the existing OpenSM
> GetMulti(MultiPathRecord) ?

Current SA MPR support in OpenSM does try to return paths with lower
"overlap" so I think it could be used as is. However, I'm not sure this
is supported by all SMs so the SA CapabilityMask bit needs testing and
there needs to be fallback to normal PRs.

> Do you have plans for implementing the new IBTA errata for supporting
> the automatic remote node/system selection?

Yes; this is beyond the OFED 1.2 timeframe.

-- Hal

>  
> 
> Thanks
> 
> Eitan
> 
>  
> 
> From: Ami Perlmutter 
> Sent: Monday, January 01, 2007 4:01 PM
> To: Eitan Zahavi
> Cc: Michael S. Tsirkin
> Subject: path query question
> 
> 
>  
> 
> Hi Eitan
> 
> I’m currently implementing HA in SDP.
> 
> I have my primary path from an SA query, and I want to know what is
> the fastest and simplest way to find an alternate path
> 
> from my other port to the remote machine’s other port.
> 
> There is an example in the SDP spec of how such a thing might be
> accomplished, but it is too long and involves too many MADs.
> 
>