commit ca144abd886266aa0e1fc7b150a3b733cb0be353
author Chau Ly <chaul@amperecomputing.com> Mon Apr 15 03:54:44 2024 +0000
committer Chau Ly <chaul@amperecomputing.com> Thu May 02 02:52:30 2024 +0000
tree 28a5f777cce8db2153f660a11747142ccfd6c928
parent 14c474c501f7f08974bdff7af8169b17f44d8e47

schemas: Add Inventory.Item.NetworkInterface

For phosphor-networkd's sync-mac feature [1] to work,
phosphor-networkd must be able to find an object with
xyz.openbmc_project.Inventory.Item.NetworkInterface interface.

This commit adds the property `MACAddress` under the interface
`xyz.openbmc_project.Inventory.Item.NetworkInterface` to the
openbmc-dbus.json schema, and adds the interface to under
"EMConfig"/"properties" in global.json to expose the Board's MAC
Address to D-Bus.

Tested:
Add below config to Mt.Mitchell BMC board's EM configuration:
"xyz.openbmc_project.Inventory.Item.NetworkInterface": {
    "MACAddress": "$BOARD_INFO_AM1"
}
=> Successfully pass CI build

$ busctl get-property xyz.openbmc_project.EntityManager \
/xyz/openbmc_project/inventory/system/board/Mt_Mitchell_BMC \
xyz.openbmc_project.Inventory.Item.NetworkInterface MACAddress
s "xx:xx:xx:xx:xx:xx"

=> phosphor-network-manager manages to get MAC address from inventory on
first boot, or when FORCE_SYNC_MAC_FROM_INVENTORY is set

$ journalctl | grep -i network
...
phosphor-network-manager: Check VPD for MAC: Force sync enabled
phosphor-network-manager: Registering the Inventory Signals Matcher
phosphor-network-manager: Setting MAC xx:xx:xx:xx:xx:xx on interface
eth0
...

$ busctl get-property xyz.openbmc_project.Network \
/xyz/openbmc_project/network/eth0 \
xyz.openbmc_project.Network.MACAddress MACAddress
s "xx:xx:xx:xx:xx:xx"

[1]: https://github.com/openbmc/phosphor-networkd/commit/cc099a855ab517deb563ceb6821a8a414362132e

Signed-off-by: Chau Ly <chaul@amperecomputing.com>
Change-Id: I2b9ea2a250e3b98d811154955e09130a00682baf

schemas/openbmc-dbus.json

diff --git a/schemas/openbmc-dbus.json b/schemas/openbmc-dbus.json
index 2819a8f..aa586a7 100644
--- a/schemas/openbmc-dbus.json
+++ b/schemas/openbmc-dbus.json
@@ -104,6 +104,16 @@
                             "additionalProperties": false,
                             "type": "object"
                         },
+                        "NetworkInterface": {
+                            "additionalProperties": false,
+                            "properties": {
+                                "MACAddress": {
+                                    "type": "string"
+                                }
+                            },
+                            "required": ["MACAddress"],
+                            "type": "object"
+                        },
                         "Panel": {
                             "additionalProperties": false,
                             "type": "object"