[openib-general] [PATCH RFC 0 of 5] QoS support

Hal Rosenstock halr at voltaire.com
Wed Jan 31 11:00:38 PST 2007


On Mon, 2007-01-22 at 09:41, Michael S. Tsirkin wrote:
> The following (lightly tested) RFC patch series implement QoS support
> according to the proposed LWG2 QoS Annex. This is *not* intended for
> upstream merge, but I do intent to put it in OFED as a technology preview.
> 
> Some notes:
> - Module parameters (off by default) were added to control QoS support.
>   This is a safety measure, due to the fact QoS is not in spec yet.
>   These will have to go before upstream submission.

Is SA ClassPortInfo queried to see if the SA supports QoS prior to
making any SA requests ?

-- Hal

> - Once enabled, all CMA based ULPs will get Service ID set in their
>   path query requests.
> - To set priority, a new rdma_set_priority call was added.
>   It should be possible to implement it on top of iWarp as well
>   (IB QoS is explicitly defined to match DSCP semantics),
>   so I think this belongs in the common header.
>   For now this value is ignored on iWarp HCA.





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