I'm trying to set my Intel 82599 link speed to 1Gb/s using ethtool but it fails with "Invalid argument"
More details of the NIC I'm using- AOC-STGN-i2S 2-port 10GB SFP+ NIC (Intel 82599) and the Finisar transceiver FTLX8571D3BCL.
The NIC is connected via the transceiver and a 10G Duplex Multimode optical fiber cable to a port on an FPGA that is currently programmed to run at 10G
I would like to do this using a kernel supported driver (ixgbe) and also when using a DPDK enabled driver (igb_uio)
My OS is Linux 4.4.0-34-generic # 53-Ubuntu SMP Wed Jul 27 16:06:39 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
- Once the NIC changes to 1 G, can I expect it to do auto -negotiation and get the FPGA port also to shift to 1 G?
- The ethtool output says the NIC supports a single link mode 10000baseT/Full but the instruction in the http://www.intel.com/content/dam/www/public/us/en/documents/datasheets/82599-10-gbe-controller-datas... datasheet under MAUI Link Setup Flow suggest that it could run at 1G, which one is right? (Also, I don't understand this way of configuring the NIC, and would be glad to get more pointers on this)
- There is a ftp://ftp.supermicro.com/CDR-X9_1.23_for_Intel_X9_platform/Intel/LAN/v18.8/PROXGB/DOCS/SERVER/cbl_fi... doc that calls the transceiver as a single rate 10G, does that mean
sudo /sbin/ethtool -s ens1f0 autoneg off speed 1000 duplex full
Cannot set new settings: Invalid argument
not setting speed
not setting duplex
not setting autoneg
Here is the output from ethtool
lavanyaj@mule-1:~$ ethtool ens1f0
Settings for ens1f0:
Supported ports: [ FIBRE ]
Supported link modes: 10000baseT/Full
Supported pause frame use: No
Supports auto-negotiation: No
Advertised link modes: 10000baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: No
Cannot get wake-on-lan settings: Operation not permitted
Current message level: 0x00000007 (7)
drv probe link
Link detected: yes
The AOC-STGN-i2S 2-port 10GB SFP+ NIC is a Supermicro* network adapter. As this is a third party network adapter, please check with Supermicro* for assistance.
sudo /sbin/ethtool -s ens1f0 advertise 0x1000
See man page of ethtool:advertise N Sets the speed and duplex advertised by autonegotiation. The argument is a hexadecimal value using one or a combination of the following values: 0x001 10baseT Half 0x002 10baseT Full 0x004 100baseT Half 0x008 100baseT Full 0x010 1000baseT Half (not supported by IEEE standards) 0x020 1000baseT Full 0x20000 1000baseKX Full 0x8000 2500baseX Full (not supported by IEEE standards) 0x1000 10000baseT Full 0x40000 10000baseKX4 Full 0x80000 10000baseKR Full 0x20000020000baseMLD2 Full (not supported by IEEE standards) 0x40000020000baseKR2 Full(not supported by IEEE standards) 0x80000040000baseKR4 Full 0x1000000 40000baseCR4 Full 0x2000000 40000baseSR4 Full