Hi,
I am observing a strange issue with i354 when auto-negotiation is turned off.
The device I have has 6 ethernet ports. Port 1 and 2 are based on i210 and port
3 to 6 are based on i354 (connected thru an external PHY). The CPU is Atom
Rangeley (4 core).
I have connected ports 3 and 4 back to back with an external cable. When the
link is forced to 100M/Full duplex with auto-negotiation off on both the ports,
the link does not come up.
Whereas the link comes up fine when eth3 (i354) and eth1 (i210) are connected
back to back and forced to 100M/Full duplex with auto-negotiation off.
This issue is seen with linux kernel (ubuntu 14.04).
Is this a known issue ?
Following are logs when running the test using ethtool from linux
admin@Ananda-Desk:~$ lspci | grep Ethernet
00:14.0 Ethernet controller: Intel Corporation Ethernet Connection I354 (rev
03) - eth2
00:14.1 Ethernet controller: Intel Corporation Ethernet Connection I354 (rev
03) - eth3
00:14.2 Ethernet controller: Intel Corporation Ethernet Connection I354 (rev
03) - eth4
00:14.3 Ethernet controller: Intel Corporation Ethernet Connection I354 (rev
03) - eth5
01:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network Connection
(rev 03) - eth0
02:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network Connection
(rev 03) - eth1
admin@Ananda-Desk:~$ ethtool -i eth3
driver: igb
version: 5.2.13-k
firmware-version: 0.0.0
bus-info: 0000:00:14.1
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: no
[Force 100M/Full on eth3]
admin@Ananda-Desk:~$ sudo ethtool -s eth3 autoneg off duplex full speed 100
admin@Ananda-Desk:~$ ethtool eth3
Settings for eth3:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supported pause frame use: Symmetric
Supports auto-negotiation: Yes
Advertised link modes: Not reported
Advertised pause frame use: Symmetric
Advertised auto-negotiation: No
Speed: 100Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: off
MDI-X: off (auto)
Cannot get wake-on-lan settings: Operation not permitted
Current message level: 0x00000007 (7)
drv probe link
Link detected: yes
admin@Ananda-Desk:~$ ethtool eth4
Settings for eth4:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supported pause frame use: Symmetric
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised pause frame use: Symmetric
Advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Half
Port: Twisted Pair
PHYAD: 2
Transceiver: internal
Auto-negotiation: on
MDI-X: on (auto)
Cannot get wake-on-lan settings: Operation not permitted
Current message level: 0x00000007 (7)
drv probe link
Link detected: yes
[Force 100M/Full on eth4]
admin@Ananda-Desk:~$ sudo ethtool -s eth4 autoneg off duplex full speed 100
admin@Ananda-Desk:~$
admin@Ananda-Desk:~$ ethtool eth4
Settings for eth4:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supported pause frame use: Symmetric
Supports auto-negotiation: Yes
Advertised link modes: Not reported
Advertised pause frame use: Symmetric
Advertised auto-negotiation: No
Speed: Unknown!
Duplex: Unknown! (255)
Port: Twisted Pair
PHYAD: 2
Transceiver: internal
Auto-negotiation: off
MDI-X: on (auto)
Cannot get wake-on-lan settings: Operation not permitted
Current message level: 0x00000007 (7)
drv probe link
Link detected: no <<<<<<<<<<<<<<
admin@Ananda-Desk:~$ ethtool eth3
Settings for eth3:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supported pause frame use: Symmetric
Supports auto-negotiation: Yes
Advertised link modes: Not reported
Advertised pause frame use: Symmetric
Advertised auto-negotiation: No
Speed: Unknown!
Duplex: Unknown! (255)
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: off
MDI-X: off (auto)
Cannot get wake-on-lan settings: Operation not permitted
Current message level: 0x00000007 (7)
drv probe link
Link detected: no <<<<<<<<<<<
[Connect cables between eth1 and eth3]
[Force 100M/Full on eth1]
admin@Ananda-Desk:~$
admin@Ananda-Desk:~$ sudo ethtool -s eth1 autoneg off duplex full speed 100
admin@Ananda-Desk:~$
admin@Ananda-Desk:~$ ethtool eth1
Settings for eth1:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supported pause frame use: Symmetric
Supports auto-negotiation: Yes
Advertised link modes: Not reported
Advertised pause frame use: Symmetric
Advertised auto-negotiation: No
Speed: 100Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: off
MDI-X: on (auto)
Cannot get wake-on-lan settings: Operation not permitted
Current message level: 0x00000007 (7)
drv probe link
Link detected: yes <<<<<<<<<<<<
admin@Ananda-Desk:~$ ethtool eth3
Settings for eth3:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supported pause frame use: Symmetric
Supports auto-negotiation: Yes
Advertised link modes: Not reported
Advertised pause frame use: Symmetric
Advertised auto-negotiation: No
Speed: 100Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: off
MDI-X: off (auto)
Cannot get wake-on-lan settings: Operation not permitted
Current message level: 0x00000007 (7)
drv probe link
Link detected: yes <<<<<<<<<<<<