[openib-general] [PATCH] Allow setting of NodeDescription

Eitan Zahavi eitan at mellanox.co.il
Mon Sep 19 13:01:37 PDT 2005


Hal Rosenstock wrote:
> On Fri, 2005-09-16 at 00:55, Eitan Zahavi wrote: 
> 
>>For the gen2 stack we could use the following "hack":
>>OpenSM scans all nodes for their description every time it does a full
> 
> sweep.
> 
>>So we could cause an extra sweep after each node description change by
> 
> faking trap 144
> 
>>(HCA port capability mask change) and sending it over.
> 
> 
> Is a full sweep needed to handle a single HCA port capability mask
> change ?
Current implementation does either a full sweep or light sweep (scan only switch info for
change bit and non responsive ports).

> 
> Also, couldn't the NodeDescription change be handled with a light sweep
> (if SM Get NodeDescription were added there) ? That might be better or
> are there other issues with doing it that way ?
See above. No other issues but we might eventually define incremental algorithm.
> 
> -- Hal
> 




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