[openib-general] EEH: MMIO Failure on Power5

[Pradeep Satyanarayana]

Tried to find out the "default superslotes" for an OpenPower 720. Please
try either slot 2 or 5.  I delayed my response to make certain that these
were indeed the superslots. I am still not a 100% certain -no point waiting
beyond a certain stage.

If you can please go ahead and try these and let us see what happens. Also
can you provide the output of "lspci -v" before you load the ib_mthca?

The firmware I was referring to was the OpenPower firmware, not that of the
HCA.

Pradeep
pradeep at us.ibm.com



                                                                           
             Thaddeus Ternes                                               
             <tternes at gmail.co                                             
             m>                                                         To 
                                       Pradeep                             
             09/23/2005 11:23          Satyanarayana/Beaverton/IBM at IBMUS   
             AM                                                         cc 
                                       openib-general at openib.org, Roland   
                                       Dreier <rolandd at cisco.com>          
             Please respond to                                     Subject 
              Thaddeus Ternes          Re: [openib-general] EEH: MMIO      
                                       Failure on Power5                   
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           




I've tried a few things, but still seem to get the same error.  My
testing has been on 2.6.13.1, with SVN IB code (as of Monday).  The
ib_mthca module reports my HCA FW version to be 3.2.0 (which is
admittedly old).  Updating this old firmware will likely be my next
step.

Originally, I had installed the card in slot 1.  I've since poked
around in a PDF file I found on IBM's site and concluded that I should
have installed the card in slot 3, though I'm still not overly
confident about that.  I/O Adapter Large Capacity is also now enabled
(it wasn't previously, and changing it while the card was in slot 1
didn't seem to affect anything).

Is somebody aware of a clear way to identify which of the slots in the
720 are "superslots," as I've had no luck so far in my hunt in the
documentation.  Most likely, I've mistakenly skipped over it.

Thanks.

Thaddeus

On 9/22/05, Pradeep Satyanarayana <pradeep at us.ibm.com> wrote:
>
>
> I have filed a bug against the kernel (for p-series) as a starting point.
> Could you please flll me on some of the other specifics a) which kernel
were
> you using b) firmware level (presumably it is uptodate).
>
>  One other issue that I failed to mention previously - is the HCA in one
of
> the superslots (I know on my p570 slots 2 and 6 are superslots by
default)
> and, is this superslot enabled?
>
>  Here is a quote of how to enable superslots-
>
>  One issue with the Mellanox cards in pSeries systems is to ensure that
the
> card is installed in a superslot, and that the "I/O Adapter Enlarged
> Capacity" setting has been enabled for the system. For a p570, slots C6
and
> C2 are the available super slots. To enable the "Enlarged Capacity"
feature,
> go to ASM and select the following screens:
>
>  System Configuration->I/O Adapter Enlarged Capacity
>  Set the setting to Enabled and save it.
>
>  If this does not help, I have already filed the bug. Please let me know
> either way.
>
>  Pradeep
>  pradeep at us.ibm.com
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