[ofa-general] Re: [ewg] [PATCH] IB/ehca: Construct MAD redirect replies from request MAD

[Hal Rosenstock]

On 8/27/09, Joachim Fenkes <FENKES at de.ibm.com> wrote:
>
> Hal Rosenstock <hal.rosenstock at gmail.com> wrote on 26.08.2009 17:15:03:
>
> > Thanks for doing this. It looks sane to me. The only issue I recall that
>
> > appears to be remaining is a better setting of
> ClassPortInfo:RespTimeValue
> > rather than hardcoding. Perhaps using the value from PortInfo is the way
> to go
> > (ideally it would be that value from the port to which the the requester
> is
> > being redirected to but that might not be so easy to get from this port.
>
> I don't think that effort will be necessary or even legal. The requestor
> will react to the redirection with another Get(ClassPortInfo) to the
> redirection target, which will reply with its own RespTimeValue, so our
> driver should speak for itself.


I overreached with my comment on how this works.

 Since we don't know when our MAD
> processing and sending of the response is going to be scheduled (we're not
> running on real-time constraints here), we play it safe and return 18,
> which amounts to roughly a second.
>
> Make sense?


I don't think it should be hard coded. IMO it would be better to default to
18 and somehow able to be adjusted (via a (dynamic) module parameter ?).

-- Hal


> Regards
> Joachim
>
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