Public bug reported:
This was discovered during certification testing of 16.04.4 (I've now
seen this behaviour at least 2 times)
A system under test has a 2 port Intel X550 NIC (10Gb)
Udev reports the NIC as this:
Category: NETWORK
Interface: enp94s0f0
Product: Ethernet Controller 10G X550T
Vendor: Intel Corporation
Driver: ixgbe (ver: 5.1.0-k)
Path: /devices/pci0000:5d/0000:5d:00.0/0000:5e:00.0
ID: [8086:1563]
Subsystem ID: [152d:8a13]
Ethtool shows this info (this is for the second port, which has the issue)
Settings for enp94s0f1:
Supported ports: [ TP ]
Supported link modes: 100baseT/Full
1000baseT/Full
10000baseT/Full
Supported pause frame use: Symmetric
Supports auto-negotiation: Yes
Advertised link modes: 100baseT/Full
1000baseT/Full
10000baseT/Full
Advertised pause frame use: Symmetric
Advertised auto-negotiation: Yes
Speed: 10000Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
MDI-X: Unknown
Supports Wake-on: umbg
Wake-on: g
Current message level: 0x00000007 (7)
drv probe link
Link detected: yes
Note ethtool shows an active 10Gb link.
The test tool determines the NIC speed by introspecting the sysfs data
for each NIC port. In this case, by looking at
/sys/class/net/DEVICENAME/speed
I've now seen this on a couple different NICs using the ixgbe driver.
The first port will properly show connected link speed in
/sys/class/net/DEVICENAME/speed but the second port shows -1 in that
file.
Because of this, certification tests are failing because the tool
believes that the link speed is incorrect.
This current example is using kernel 4.13.0-37.42~16.04.1
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: blocks-hwcert-server
** Summary changed:
- Intel NICs not properly reporting link speed in SysFS
+ Intel NICs not properly reporting link speed in SysFS in Xenial
** Description changed:
- This was discovered during certification testing.
+ This was discovered during certification testing of 16.04.4 (I've now
+ seen this behaviour at least 2 times)
A system under test has a 2 port Intel X550 NIC (10Gb)
Udev reports the NIC as this:
Category: NETWORK
Interface: enp94s0f0
Product: Ethernet Controller 10G X550T
Vendor: Intel Corporation
Driver: ixgbe (ver: 5.1.0-k)
Path: /devices/pci0000:5d/0000:5d:00.0/0000:5e:00.0
ID: [8086:1563]
Subsystem ID: [152d:8a13]
Ethtool shows this info (this is for the second port, which has the issue)
Settings for enp94s0f1:
- Supported ports: [ TP ]
- Supported link modes: 100baseT/Full
- 1000baseT/Full
- 10000baseT/Full
- Supported pause frame use: Symmetric
- Supports auto-negotiation: Yes
- Advertised link modes: 100baseT/Full
- 1000baseT/Full
- 10000baseT/Full
- Advertised pause frame use: Symmetric
- Advertised auto-negotiation: Yes
- Speed: 10000Mb/s
- Duplex: Full
- Port: Twisted Pair
- PHYAD: 0
- Transceiver: internal
- Auto-negotiation: on
- MDI-X: Unknown
- Supports Wake-on: umbg
- Wake-on: g
- Current message level: 0x00000007 (7)
- drv probe link
- Link detected: yes
+ Supported ports: [ TP ]
+ Supported link modes: 100baseT/Full
+ 1000baseT/Full
+ 10000baseT/Full
+ Supported pause frame use: Symmetric
+ Supports auto-negotiation: Yes
+ Advertised link modes: 100baseT/Full
+ 1000baseT/Full
+ 10000baseT/Full
+ Advertised pause frame use: Symmetric
+ Advertised auto-negotiation: Yes
+ Speed: 10000Mb/s
+ Duplex: Full
+ Port: Twisted Pair
+ PHYAD: 0
+ Transceiver: internal
+ Auto-negotiation: on
+ MDI-X: Unknown
+ Supports Wake-on: umbg
+ Wake-on: g
+ Current message level: 0x00000007 (7)
+ drv probe link
+ Link detected: yes
Note ethtool shows an active 10Gb link.
The test tool determines the NIC speed by introspecting the sysfs data
for each NIC port. In this case, by looking at
/sys/class/net/DEVICENAME/speed
I've now seen this on a couple different NICs using the ixgbe driver.
The first port will properly show connected link speed in
/sys/class/net/DEVICENAME/speed but the second port shows -1 in that
file.
Because of this, certification tests are failing because the tool
believes that the link speed is incorrect.
This current example is using kernel 4.13.0-37.42~16.04.1
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1757191
Title:
Intel NICs not properly reporting link speed in SysFS in Xenial
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+bug/1757191/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
