tree ce9bf3ea4f8d92bdc293e4111988db3fef929898
parent 8554f105a7c007f82989f0c86ecdf0f227d49194
author Santosh Puranik <santosh.puranik@in.ibm.com> 1579773925 -0600
committer SunnySrivastava1984 <sunnsr25@in.ibm.com> 1591170222 -0500

Support multiple inventory objects per EEPROM

This commit enables the IBM VPD parser to add multiple
inventory objects based on the contents of a single EEPROM.

An example would be inventory items that share data with the
parent FRU that actually contains the VPD, such as an ethernet
port on the BMC card.

The commit also adds support for encoding keyword data in
formats other than just converting them to string before
publishing it on D-Bus. While this commit only adds MAC address
as a possible encoding, more can be added in the future by
specifying the encoding in the inventory JSON.

Tested: Verified the following:

* D-Bus objects added to the inventory for the BMC FRU and its
  associated connectors.
* The ethernet objects are populated with the MACAddress property.

Sample output from D-Bus:

root@rainier:~# busctl get-property xyz.openbmc_project.Inventory.Manager
/xyz/openbmc_project/inventory/system/chassis/motherboard/ebmc_card_bmc/ethernet0
xyz.openbmc_project.Inventory.Item.NetworkInterface MACAddress --no-pager
s "00:11:25:c1:00:00"
root@rainier:~# busctl get-property xyz.openbmc_project.Inventory.Manager
/xyz/openbmc_project/inventory/system/chassis/motherboard/ebmc_card_bmc/ethernet1
xyz.openbmc_project.Inventory.Item.NetworkInterface MACAddress --no-pager
s "00:11:25:c1:00:01"

Signed-off-by: Santosh Puranik <santosh.puranik@in.ibm.com>
Change-Id: Iee839b405c60e7e825f709e4ad0bb0f63d11a1b3