[fm-discuss] Proposal: libtopo eumeration of power supplies and fans via IPMI

[cindi]

Scott Davenport wrote:
> On Tue, 2008-01-08 at 12:43 -0800, Cynthia McGuire wrote:
>> Eric Schrock wrote:
>>

>>
>> On SPARC: I'm almost certain there is software (DE or other) that 
>> depends on the path construction.
> 
> Correct. On SPARC, at least in sun4v, the CPU/Mem DE manually constructs
> FMRIs when producing suspect lists. It has internal knowledge of what
> the FRU and ASRU FMRIs should be for a particular platform. If 'chassis'
> were pre-pended, the DE would need to be updated as well.
> 
> The IO diag rules on SPARC are in EFT, and those should still work fine.
> An example is the topology between a T2000 and T5120 are different, but
> both use the fire.esc rules. All works because the relative arrangement
> of hostbridge/pciexrc is the same.

I vaguely recall breaking diagnosis when I made a change to the PCIE 
topology in Solaris on a T1000.   I believe that events transported via 
ETM from the SP had one upper (i.e. hc://ioboard) path and the topology 
in Solaris had another( hc://chassis or maybe hc://motherboard).

In short, I'd be careful making changes to any SPARC platform topologies.

Cindi