Support showing current feature state, and changing features on the fly.
The output and interface should be similar to `ethtool`.
We don't support legacy feature names.
```
node: 172.20.0.5
metadata:
namespace: network
type: EthernetStatuses.net.talos.dev
id: enp0s2
version: 2
owner: network.EthernetStatusController
phase: running
created: 2025-02-10T11:40:32Z
updated: 2025-02-10T11:40:32Z
spec:
linkState: true
port: Other
duplex: Unknown
rings:
rx-max: 256
tx-max: 256
rx: 256
tx: 256
tx-push: false
rx-push: false
features:
tx-scatter-gather: on
tx-checksum-ipv4: off [fixed]
tx-checksum-ip-generic: on
tx-checksum-ipv6: off [fixed]
highdma: on [fixed]
tx-scatter-gather-fraglist: off [fixed]
tx-vlan-hw-insert: off [fixed]
rx-vlan-hw-parse: off [fixed]
rx-vlan-filter: on [fixed]
vlan-challenged: off [fixed]
tx-generic-segmentation: on
rx-gro: on
rx-lro: off [fixed]
tx-tcp-segmentation: on
tx-gso-robust: on [fixed]
tx-tcp-ecn-segmentation: on
tx-tcp-mangleid-segmentation: off
tx-tcp6-segmentation: on
tx-fcoe-segmentation: off [fixed]
tx-gre-segmentation: off [fixed]
tx-gre-csum-segmentation: off [fixed]
tx-ipxip4-segmentation: off [fixed]
tx-ipxip6-segmentation: off [fixed]
tx-udp_tnl-segmentation: off [fixed]
tx-udp_tnl-csum-segmentation: off [fixed]
tx-gso-partial: off [fixed]
tx-tunnel-remcsum-segmentation: off [fixed]
tx-sctp-segmentation: off [fixed]
tx-esp-segmentation: off [fixed]
tx-udp-segmentation: off
tx-gso-list: off [fixed]
tx-checksum-fcoe-crc: off [fixed]
tx-checksum-sctp: off [fixed]
rx-ntuple-filter: off [fixed]
rx-hashing: off [fixed]
rx-checksum: on [fixed]
tx-nocache-copy: off
loopback: off [fixed]
rx-fcs: off [fixed]
rx-all: off [fixed]
tx-vlan-stag-hw-insert: off [fixed]
rx-vlan-stag-hw-parse: off [fixed]
rx-vlan-stag-filter: off [fixed]
l2-fwd-offload: off [fixed]
hw-tc-offload: off [fixed]
esp-hw-offload: off [fixed]
esp-tx-csum-hw-offload: off [fixed]
rx-udp_tunnel-port-offload: off [fixed]
tls-hw-tx-offload: off [fixed]
tls-hw-rx-offload: off [fixed]
rx-gro-hw: on
tls-hw-record: off [fixed]
rx-gro-list: off
macsec-hw-offload: off [fixed]
rx-udp-gro-forwarding: off
hsr-tag-ins-offload: off [fixed]
hsr-tag-rm-offload: off [fixed]
hsr-fwd-offload: off [fixed]
hsr-dup-offload: off [fixed]
```
Signed-off-by: Andrey Smirnov <andrey.smirnov@siderolabs.com>
