[openib-general] cma_tavor_quirk.patch

[Bill Hartner]

Roland Dreier <rdreier at cisco.com> wrote on 11/04/2006 09:15:54 AM:

> > +       if (tavor_quirk) {
> > +               path_rec.mtu_selector = IB_SA_LT;
> > +               path_rec.mtu = IB_MTU_2048;
> > +       }
> > +
> > [snip]
> >
> > Is this correct, or should MTU be set to 1024 when tavor_quirk is used?
>
> The quirk _is_ basically setting the MTU to 1024 (it's asking for a
> path with an MTU less than 2048).  It is just being careful to work in
> a network where the MTU is already less than 1024.

> - R.

Thanks, I overlooked IB_SA_LT.  I will need to check the config again
since I was not able to get the expected performance improvement.

-Bill