nvidia-gpu: add support for PCIe port telemetry
Add xyz.openbmc_project.Inventory.Connector.Port Interface for each PCIe
port of a ConnectX device.
PDI patches to extend the xyz.openbmc_project.Inv
nvidia-gpu: add support for PCIe port telemetry
Add xyz.openbmc_project.Inventory.Connector.Port Interface for each PCIe
port of a ConnectX device.
PDI patches to extend the xyz.openbmc_project.Inventory.Connector.Port
Interface -
https://gerrit.openbmc.org/c/openbmc/phosphor-dbus-interfaces/+/84653
https://gerrit.openbmc.org/c/openbmc/phosphor-dbus-interfaces/+/84652
Tested: Build an image for nvl32-obmc machine with the following patch
cherry picked.
https://gerrit.openbmc.org/c/openbmc/openbmc/+/85490
The patch cherry-picks the following patches that are currently under
review.
```
1. device tree
https://lore.kernel.org/all/aRbLqH8pLWCQryhu@molberding.nvidia.com/
2. mctpd patches
https://github.com/CodeConstruct/mctp/pull/85
3. u-boot changes
https://lore.kernel.org/openbmc/20251121-msx4-v1-0-fc0118b666c1@nvidia.com/T/#t
4. kernel changes as specified in the openbmc patch (for espi)
5. entity-manager changes
https://gerrit.openbmc.org/c/openbmc/entity-manager/+/85455
6. platform-init changes
https://gerrit.openbmc.org/c/openbmc/platform-init/+/85456
7. spi changes
https://lore.kernel.org/all/20251121-w25q01jv_fixup-v1-1-3d175050db73@nvidia.com/
```
```
root@nvl32-obmc:~# busctl tree xyz.openbmc_project.GpuSensor
`- /xyz
`- /xyz/openbmc_project
|- /xyz/openbmc_project/inventory
| `- /xyz/openbmc_project/inventory/pcie_devices
| |- /xyz/openbmc_project/inventory/pcie_devices/Nvidia_ConnectX_0
| | |- /xyz/openbmc_project/inventory/pcie_devices/Nvidia_ConnectX_0/DOWN_0
| | |- /xyz/openbmc_project/inventory/pcie_devices/Nvidia_ConnectX_0/DOWN_1
| | `- /xyz/openbmc_project/inventory/pcie_devices/Nvidia_ConnectX_0/UP_0
| |- /xyz/openbmc_project/inventory/pcie_devices/Nvidia_ConnectX_1
| | |- /xyz/openbmc_project/inventory/pcie_devices/Nvidia_ConnectX_1/DOWN_0
| | |- /xyz/openbmc_project/inventory/pcie_devices/Nvidia_ConnectX_1/DOWN_1
| | `- /xyz/openbmc_project/inventory/pcie_devices/Nvidia_ConnectX_1/UP_0
| |- /xyz/openbmc_project/inventory/pcie_devices/Nvidia_ConnectX_2
| | |- /xyz/openbmc_project/inventory/pcie_devices/Nvidia_ConnectX_2/DOWN_0
| | |- /xyz/openbmc_project/inventory/pcie_devices/Nvidia_ConnectX_2/DOWN_1
| | `- /xyz/openbmc_project/inventory/pcie_devices/Nvidia_ConnectX_2/UP_0
| `- /xyz/openbmc_project/inventory/pcie_devices/Nvidia_ConnectX_3
| |- /xyz/openbmc_project/inventory/pcie_devices/Nvidia_ConnectX_3/DOWN_0
| |- /xyz/openbmc_project/inventory/pcie_devices/Nvidia_ConnectX_3/DOWN_1
| `- /xyz/openbmc_project/inventory/pcie_devices/Nvidia_ConnectX_3/UP_0
`- /xyz/openbmc_project/sensors
root@nvl32-obmc:~# busctl -l introspect xyz.openbmc_project.GpuSensor /xyz/openbmc_project/inventory/pcie_devices/Nvidia_ConnectX_1/DOWN_0
NAME TYPE SIGNATURE RESULT/VALUE FLAGS
org.freedesktop.DBus.Introspectable interface - - -
.Introspect method - s -
org.freedesktop.DBus.Peer interface - - -
.GetMachineId method - s -
.Ping method - - -
org.freedesktop.DBus.Properties interface - - -
.Get method ss v -
.GetAll method s a{sv} -
.Set method ssv - -
.PropertiesChanged signal sa{sv}as - -
xyz.openbmc_project.Association.Definitions interface - - -
.Associations property a(sss) 1 "connected_to" "connecting" "/xyz/openbmc_project/inventory/pcie_devices/Nvidia_ConnectX_1" emits-change
xyz.openbmc_project.Inventory.Connector.Port interface - - -
.PortProtocol property s "xyz.openbmc_project.Inventory.Connector.Port.PortProtocol.PCIe" emits-change
.PortType property s "xyz.openbmc_project.Inventory.Connector.Port.PortType.DownstreamPort" emits-change
.Speed property t 34359738368 emits-change
.Width property u 16 emits-change
```
Change-Id: I2845f090ac92c8ff6a742ec83c23073e6ea4e1b6
Signed-off-by: Harshit Aghera <haghera@nvidia.com>
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