[ofa-general] Re: [RFC] the never ending search for SA scalability

[Hal Rosenstock]

On 8/11/07, Michael S. Tsirkin <mst at dev.mellanox.co.il> wrote:
> > Quoting Sean Hefty <sean.hefty at intel.com>:
> > Subject: RE: [RFC] the never ending search for SA scalability
> >
> > >I'd like to propose the following change as a simple solution for handling SA
> > >scalability problems:
> > >
> > >Modify the ib_sa module to support an SA LID that's separate from the SM LID.
> > >
> > >This concept is supported by the spec through SA redirection; however, I
> > >propose that we also allow the SA LID to be set manually by an administrator.
> >
> > Roland,
> >
> > Is the following an acceptable approach for this?
> >
> > Add a class device file to the ib_sa that allows setting all SA redirection
> > parameters (SL, LID, PKey, QP - with processing similar to SRP's add_target).
> >
> > /sys/class/infiniband_sa/sa-mthca-0/redirect_sa
> >
> > Alternatively, I can use a module parameter to redirect only the SA LID.
>
> Hopefully, that would be something like sa/mthca0 so that
> one does not need to perform tricky string parsing to find the interface
> for a specific device.
>
> Further, won't you want to have this per-port?
> It's easy to imagine separate ports redirecting to different SA's.

True; this would need to be per port.

Shouldn't SRP targets be per port too ?

>
> --
> MST
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