bmcweb: Memory: Why not use "Present" for Redfish's Status State ?

Andrei Kartashev a.kartashev at yadro.com
Wed Oct 28 05:32:30 AEDT 2020


+1
In some cases we can only detect presence of DIMMs, but not the
details. In such cases this logic a bit painful.

On Mon, 2020-10-26 at 12:49 -0600, Gunnar Mills wrote:
> Hi Ed and Pawel,
> 
> I am missing some context here.
> Why if MemorySizeInKB is 0 we set the "Status""State" of the DIMM to
> Absent?
> Why not use the Present property?
> 
> https://github.com/openbmc/bmcweb/blob/master/redfish-core/lib/memory.hpp#L373
> 
> https://github.com/openbmc/phosphor-dbus-interfaces/blob/8aec946e2844831cfc377c0e0136de5714c08a5b/xyz/openbmc_project/Inventory/Item.interface.yaml#L9
> 
> By default MemorySizeInKB is 0 so if MemorySizeInKB hasn't been set
> your 
> DIMM looks like (all other properties are skipped):
> 
> curl -k https://$bmc/redfish/v1/Systems/system/Memory/dimm6
> {
>    "@odata.id": "/redfish/v1/Systems/system/Memory/dimm6",
>    "@odata.type": "#Memory.v1_7_0.Memory",
>    "Id": "dimm6",
>    "Name": "DIMM Slot",
>    "Status": {
>      "Health": "OK",
>      "HealthRollup": "OK",
>      "State": "Absent"
>    }
> 
> This logic was added here:
> https://github.com/openbmc/bmcweb/commit/443c2934ac1ae86b6d496e3509e2b8acf283fb18
> 
> Thanks,
> Gunnar
-- 
Best regards,
Andrei Kartashev




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