tree 2958a3280d859eae8ac9523deee8cbec99014b6c
parent 0e34d3574cc2512b8ac465913eb988a95c1cf808
author Priyanga Ramasamy <priyanga24@in.ibm.com> 1641791711 -0600
committer Priyanga Ramasamy <priyanga24@in.ibm.com> 1649137139 -0500

Populate unique PrettyName for IO-SCM systems

IO-SCM is a DCM with one of the chips being just IO-Good, that is one of
the chips does not have any good computing cores. But those chips can be
useful for other purposes like connecting PCIE devices. So we still use
those cpu chips without trashing.

So to uniquely identify an IO-Good chip, this commit populates a unique
PrettyName for such cpus so that the redfish client can easily
distinguish between chips with good computing cores and an IO-Good chip.

Test:
Tested on io-SCM system.

Case 1: CPU which is not an IO.

=====> root@rain71bmc:/tmp# ./ibm-read-vpd --file /sys/bus/spi/drivers/at25/spi12.0/eeprom

=====> root@rain71bmc:/tmp# busctl introspect xyz.openbmc_project.Inventory.Manager /xyz/openbmc_project/inventory/system/chassis/motherboard/dcm0/cpu0
NAME                                                  TYPE      SIGNATURE RESULT/VALUE                             FLAGS
com.ibm.ipzvpd.CP00                                   interface -         -                                        -
.AW                                                   property  ay        4 0 0 0 0                                emits-change writable
.D4                                                   property  ay        4 0 0 0 0                                emits-change writable
.D5                                                   property  ay        4 0 0 0 0                                emits-change writable
.MK                                                   property  ay        7 1 0 0 0 0 0 0                          emits-change writable
.PD_G                                                 property  ay        7168 23 82 83 5 9 0 20 0 0 1 3 73 2 255… emits-change writable
......

xyz.openbmc_project.Inventory.Item                    interface -         -                                        -
.Present                                              property  b         true                                     emits-change writable
.PrettyName                                           property  s         "PROCESSOR MODULE"                       emits-change writable
xyz.openbmc_project.Inventory.Item.Cpu                interface -         -                                        -
.Characteristics                                      property  as        0                                        emits-change writable
.CoreCount                                            property  q         10                                       emits-change writable

....

=====> curl -k -H "X-Auth-Token: $bmc_token" -X GET https://${bmc}/redfish/v1/Systems/system/Processors/dcm0-cpu0
{
  "@odata.id": "/redfish/v1/Systems/system/Processors/dcm0-cpu0",
  "@odata.type": "#Processor.v1_12_0.Processor",
  "Id": "dcm0-cpu0",
  "Location": {
    "PartLocation": {
      "ServiceLabel": "U78DA.ND0.WZS0042-P0-C15"
    }
  },
  "LocationIndicatorActive": false,
  "Manufacturer": "",
  "MaxSpeedMHz": 0,
  "Model": "5C74",
  "Name": "PROCESSOR MODULE",
  "PartNumber": "03JM528",
  "ProcessorId": {
    "EffectiveFamily": ""
  },
  "ProcessorType": "CPU",
  "SerialNumber": "YA3936127705",
  "Socket": "",
  "SparePartNumber": "F210110",
  "Status": {
    "Health": "OK",
    "State": "Enabled"
  },
  "SubProcessors": {
    "@odata.id": "/redfish/v1/Systems/system/Processors/dcm0-cpu0/SubProcessors"
  },
  "TotalCores": 10,
  "TotalThreads": 0
}

Case 2: CPU which is an IO only chip.

=====> root@rain71bmc:/tmp# ./ibm-read-vpd --file /sys/bus/spi/drivers/at25/spi22.0/eeprom

=====> root@rain71bmc:/tmp# busctl introspect xyz.openbmc_project.Inventory.Manager /xyz/openbmc_project/inventory/system/chassis/motherboard/dcm0/cpu1
NAME                                                  TYPE      SIGNATURE RESULT/VALUE                             FLAGS
com.ibm.ipzvpd.CP00                                   interface -         -                                        -
.AW                                                   property  ay        4 0 0 0 0                                emits-change writable
.D4                                                   property  ay        4 0 0 0 0                                emits-change writable
.D5                                                   property  ay        4 0 0 0 0                                emits-change writable
.MK                                                   property  ay        7 1 0 0 0 0 0 0                          emits-change writable
.PD_G                                                 property  ay        7168 23

.......

xyz.openbmc_project.Inventory.Item                    interface -         -                                        -
.Present                                              property  b         true                                     emits-change writable
.PrettyName                                           property  s         "IO"                                     emits-change writable
xyz.openbmc_project.Inventory.Item.Cpu                interface -         -                                        -
.Characteristics                                      property  as        0

...

=====> curl -k -H "X-Auth-Token: $bmc_token" -X GET https://${bmc}/redfish/v1/Systems/system/Processors/dcm0-cpu1
{
  "@odata.id": "/redfish/v1/Systems/system/Processors/dcm0-cpu1",
  "@odata.type": "#Processor.v1_12_0.Processor",
  "Id": "dcm0-cpu1",
  "Location": {
    "PartLocation": {
      "ServiceLabel": "U78DA.ND0.WZS0042-P0-C15"
    }
  },
  "LocationIndicatorActive": false,
  "Manufacturer": "",
  "MaxSpeedMHz": 0,
  "Model": "5C74",
  "Name": "IO",
  "PartNumber": "03JM528",
  "ProcessorId": {
    "EffectiveFamily": ""
  },
  "ProcessorType": "CPU",
  "SerialNumber": "YA3936127705",
  "Socket": "",
  "SparePartNumber": "F210110",
  "Status": {
    "Health": "OK",
    "State": "Enabled"
  },
  "SubProcessors": {
    "@odata.id": "/redfish/v1/Systems/system/Processors/dcm0-cpu1/SubProcessors"
  },
  "TotalCores": 0,
  "TotalThreads": 0
}
==========

Signed-off-by: Priyanga Ramasamy <priyanga24@in.ibm.com>
Change-Id: I39917557b50074650fe381f161e101640f7d870c