Dear Tony,
Am 17.02.26 um 19:16 schrieb Tony Nguyen:
On 2/17/2026 9:15 AM, Paul Menzel wrote:
I spoke to one of our link people about this.
It works with Broadcom network controller BCM57414:
$ lspci -nn -s c4:00
c4:00.0 Ethernet controller [0200]: Broadcom Inc. and subsidiaries
BCM57414 NetXtreme-E 10Gb/25Gb RDMA Ethernet Controller [14e4:16d7] (rev 01)
c4:00.1 Ethernet controller [0200]: Broadcom Inc. and subsidiaries
BCM57414 NetXtreme-E 10Gb/25Gb RDMA Ethernet Controller [14e4:16d7] (rev 01)
The difference seems to be that the Broadcom device supports auto-
negotiation, and the Intel device does not:
Strictly speaking, optical links do not provide auto-negotiation.
Intel E810-XXV:
Supported ports: [ FIBRE ]
Supported link modes: 1000baseT/Full
10000baseT/Full
25000baseCR/Full
25000baseSR/Full
1000baseX/Full
10000baseCR/Full
10000baseSR/Full
10000baseLR/Full
Supported pause frame use: Symmetric
Supports auto-negotiation: No
Supported FEC modes: None
Advertised link modes: 25000baseSR/Full
The important part is here 10G is not an advertised link mode...
Advertised pause frame use: No
Advertised auto-negotiation: No
Advertised FEC modes: None
Speed: Unknown!
Duplex: Unknown! (255)
Auto-negotiation: off
Port: FIBRE
PHYAD: 0
Transceiver: internal
Supports Wake-on: d
Wake-on: d
Current message level: 0x00000007 (7)
drv probe link
Link detected: no
Broadcom BCM57414 NetXtreme-E:
Supported ports: [ FIBRE ]
Supported link modes: 25000baseSR/Full
10000baseSR/Full
Supported pause frame use: Symmetric Receive-only
Supports auto-negotiation: Yes
Supported FEC modes: RS BASER
Advertised link modes: 25000baseSR/Full
10000baseSR/Full
... where it is here.
Advertised pause frame use: No
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Speed: Unknown!
Duplex: Unknown! (255)
Auto-negotiation: on
Port: FIBRE
PHYAD: 1
Transceiver: internal
Supports Wake-on: g
Wake-on: d
Current message level: 0x00002081 (8321)
drv tx_err hw
Link detected: no
PS:
```
$ ip link show net04
7: net04: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq switchid
b48351ffff278d44 state DOWN mode DEFAULT group default qlen 1000
link/ether b4:83:51:27:8d:44 brd ff:ff:ff:ff:ff:ff
alias eth4
$ sudo ethtool -m net04
Identifier : 0x03 (SFP)
Extended identifier : 0x04 (GBIC/SFP defined by
2-wire interface ID)
Connector : 0x07 (LC)
Transceiver codes : 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x02
0x10 would be here for advertised 10G support. It is not, which is
why it's not being advertised. He mentioned it's very common for
dual rates to claim it on paper but not advertise it properly.
Thank you for looking into this. It should work in this case, as it
works with the Broadcom device.
Could you provide the output for 'ethool -m <INT> hex on'?
Sure. Please find it attached for the Intel and Broadcom device. It’s
the same GBIC model and only the serial number should differ.
Kind regards,
Paul
PS: For completeness:
$ ethtool -i net04
driver: ice
version: 6.12.0-160000.5-default
firmware-version: 4.80 0x800206a0 24.0.5
expansion-rom-version:
bus-info: 0000:81:00.1
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yesOffset Values
------ ------
0x0000: 03 04 07 00 00 00 00 00 00 00 00 06 ff 10 00 00
0x0010: 00 00 0a 07 44 45 4c 4c 20 45 4d 43 20 20 20 20
0x0020: 20 20 20 20 02 78 a7 14 4d 31 34 4d 4b 20 20 20
0x0030: 20 20 20 20 20 20 20 20 41 31 20 20 03 52 00 30
0x0040: 08 3a 67 00 56 4e 30 41 50 38 30 30 35 37 31 38
0x0050: 39 30 34 20 32 35 30 38 32 37 20 20 68 fa 08 1a
0x0060: df 10 01 11 08 00 10 00 00 00 00 00 00 00 00 00
0x0070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0100: 5a 00 fb 00 58 00 00 00 88 b8 78 50 87 f0 79 18
0x0110: 19 64 00 fa 15 7c 01 f4 55 76 04 7c 43 e2 05 a5
0x0120: 55 76 02 e5 43 e2 03 a5 00 00 00 00 00 00 00 00
0x0130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0140: 00 00 00 00 3f 80 00 00 00 00 00 00 01 00 00 00
0x0150: 01 00 00 00 01 00 00 00 01 00 00 00 00 00 00 16
0x0160: 1e 2d 84 92 0a be 23 26 15 3d 00 00 00 00 30 00
0x0170: 00 00 00 00 00 00 00 00 ff ff ff 00 00 00 00 00
0x0180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0190: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x01a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x01b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x01c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x01d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x01e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x01f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset Values
------ ------
0x0000: 03 04 07 00 00 00 00 00 00 00 00 06 ff 10 00 00
0x0010: 00 00 0a 07 44 45 4c 4c 20 45 4d 43 20 20 20 20
0x0020: 20 20 20 20 02 78 a7 14 4d 31 34 4d 4b 20 20 20
0x0030: 20 20 20 20 20 20 20 20 41 31 20 20 03 52 00 30
0x0040: 08 3a 67 00 56 4e 30 41 50 38 30 30 35 37 31 38
0x0050: 39 32 32 20 32 35 30 38 32 37 20 20 68 fa 08 1a
0x0060: df 10 01 11 08 00 10 00 00 00 00 00 00 00 00 00
0x0070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0100: 5a 00 fb 00 58 00 00 00 88 b8 78 50 87 f0 79 18
0x0110: 19 64 00 fa 15 7c 01 f4 55 76 04 7c 43 e2 05 a5
0x0120: 55 76 02 e5 43 e2 03 a5 00 00 00 00 00 00 00 00
0x0130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0140: 00 00 00 00 3f 80 00 00 00 00 00 00 01 00 00 00
0x0150: 01 00 00 00 01 00 00 00 01 00 00 00 00 00 00 16
0x0160: 23 6c 80 1f 00 00 00 00 00 00 00 00 00 00 4a 00
0x0170: 05 40 00 00 05 40 08 00 ff ff ff 00 00 00 00 00
0x0180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0190: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x01a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x01b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x01c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x01d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x01e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x01f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
