Comment 6 for bug 1533721

To fix this, update ethtool in Ubuntu to the later versions. I have run into this issue now in Cert when customers are testing higher end NIC devices. The current version in Xenial is 4.5, and it looks like the current version in Artful is 4.8.

My customer tested this with 4.11 and you can see the differences below:
ethtool 1:4.5-1
Settings for enp94s0:
 Supported ports: [ FIBRE Backplane ]
 Supported link modes: 1000baseKX/Full
                         10000baseKR/Full
                         40000baseKR4/Full
                         40000baseCR4/Full
                         40000baseSR4/Full
                         40000baseLR4/Full
 Supported pause frame use: Symmetric Receive-only
 Supports auto-negotiation: Yes
 Advertised link modes: 1000baseKX/Full
                         10000baseKR/Full
                         40000baseKR4/Full
                         40000baseCR4/Full
                         40000baseSR4/Full
                         40000baseLR4/Full
 Advertised pause frame use: No
 Advertised auto-negotiation: Yes
 Link partner advertised link modes: Not reported
 Link partner advertised pause frame use: No
 Link partner advertised auto-negotiation: Yes
 Speed: 100000Mb/s
 Duplex: Full
 Port: Direct Attach Copper
 PHYAD: 0
 Transceiver: internal
 Auto-negotiation: on
 Supports Wake-on: d
 Wake-on: d
 Current message level: 0x00000004 (4)
          link
 Link detected: yes

And upstream 4.11:
Settings for enp94s0:
 Supported ports: [ FIBRE Backplane ]
 Supported link modes: 1000baseKX/Full
                         10000baseKR/Full
                         40000baseKR4/Full
                         40000baseCR4/Full
                         40000baseSR4/Full
                         40000baseLR4/Full
                         25000baseCR/Full
                         25000baseKR/Full
                         25000baseSR/Full
                         50000baseCR2/Full
                         50000baseKR2/Full
                         100000baseKR4/Full
                         100000baseSR4/Full
                         100000baseCR4/Full
                         100000baseLR4_ER4/Full
 Supported pause frame use: Symmetric Receive-only
 Supports auto-negotiation: Yes
 Advertised link modes: 1000baseKX/Full
                         10000baseKR/Full
                         40000baseKR4/Full
                         40000baseCR4/Full
                         40000baseSR4/Full
                         40000baseLR4/Full
                         25000baseCR/Full
                         25000baseKR/Full
                         25000baseSR/Full
                         50000baseCR2/Full
                         50000baseKR2/Full
                         100000baseKR4/Full
                         100000baseSR4/Full
                         100000baseCR4/Full
                         100000baseLR4_ER4/Full
 Advertised pause frame use: No
 Advertised auto-negotiation: Yes
 Speed: 100000Mb/s
 Duplex: Full
 Port: FIBRE
 PHYAD: 0
 Transceiver: internal
 Auto-negotiation: on
 Supports Wake-on: d
 Wake-on: d
 Current message level: 0x00000004 (4)
          link
 Link detected: yes

Please update ethtool at least in artful to 4.11 so that at least this will land in 18.04 if no other major changes happen.

I would also like to see this updated in Xenial as well to address these issues in the current LTS.