Enhance visibility of network interface cards during probing

[toanju]

Which component does this relate to?
server discovery

What is the reason for this feature request or change?
Enhance level of detail of network interface cards during discovery

Describe the feature

Add details from server NICs that are discoverable using ethtool

• channel information presented in the Channels struct
• device driver info presented in the DrvInfo struct
• details from sysfs (omit if not available)
  • /sys/class/net/$dev/device/numa_node
  • /sys/class/net/$dev/device/vendor
  • /sys/class/net/$dev/device/subsystem_vendor
  • /sys/class/net/$dev/device/device

Proposed API or behavior changes
only added status fields

apiVersion: metal.ironcore.dev/v1alpha1
kind: Server
...
status:
  ...
  networkInterfaces:
    - name: eno1
      ...
      channels:
        maxRx: 0
        maxTx: 0
        maxOther: 0
        maxCombined: 8
        rxCount: 0
        txCount: 0
        otherCount: 0
      driverInfo:
        driver: name
        version: version
        fwVersion: firmware_version
        busInfo: 000:01:00:0
        eromVersion: expansion-rom-version
        reserved2: could be omitted
        NPrivFlags: 0
        NStats: 1
        TestInfoLen: 0
        EedumpLen: 1
        RegdumpLen: 0
      numaNode: 0
      vendor: 0x123
      vendorSubsystem: 0x123
    - name: eno2
      ...

Alternatives considered
n/a

Additional context
n/a

[afritzler]

Do we need all of those informations? I was more interested in the firmware version of the network cards for now. Currently the metalprobe reports those infos back: https://github.com/ironcore-dev/metal-operator/blob/main/internal/probe/nics_linux.go#L38-L45 Not sure what else can get also in conjunction with the information we can retrieve via Redfish.