[Skiboot] [PATCH] IPMI: Fix eSEL size

Ananth N Mavinakayanahalli ananth at in.ibm.com
Tue Aug 11 15:36:43 AEST 2015

On Tue, Aug 11, 2015 at 02:31:14PM +1000, Stewart Smith wrote:
> Benjamin Herrenschmidt <benh at au1.ibm.com> writes:
> > On Sun, 2015-08-02 at 22:16 +0530, Vasant Hegde wrote:
> >> > 
> >> > I believe FSP PELs can be up to 64k.
> >> 
> >> IIRC its 16K.. At least OPAL limits size to 16K.
> >
> > This was the result of endless discussions last year. Nobody could give
> > us a firm answer on FSP side. It's supposed to be 64K but various FSP
> > folks weren't confident >16K was going to work.
> I managed to find out that i5 OS limit is 16k for them, so at least
> we're not alone if we just limit to 16k.
> I had a bug open once on us getting one >16k... but that went nowhere as
> nobody really had any answer/idea about it.

Venkatesh just confirmed to me that the FSP does truncate the PELs to
16k. On OpenPOWER though, 'due-diligence' takes over I guess.. though
all the docs I have referred to state eSELs to be limited to 2k.


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