Mellanox: Difference between revisions
Created page with "ConnectX is <tt>mlx4</tt> (Ethernet/Infiniband), while Connect-IB is <tt>mlx5</tt> (Infiniband only)." |
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ConnectX is <tt>mlx4</tt> ([[Ethernet]]/ | ConnectX is <tt>mlx4</tt> ([[Ethernet]]/[[InfiniBand]]) for ConnectX-3, or <tt>mlx5</tt> for ConnectX-4 and above. | ||
Connect-IB is <tt>mlx5</tt> (Infiniband only). | |||
==Setting Ethernet mode in the firmware== | |||
The default link protocol for at least ConnectX-4 is Infiniband. Changing this requires <tt>mlxconfig</tt> from the MLNX_OFED package's <tt>mft</tt> deb. <tt>mlxconfig</tt> requires <tt>mft</tt> to be running (which requires the <tt>mst_pci</tt> kernel module); <tt>/dev/mst</tt> will be populated once this has happened. This device is in Infiniband mode: | |||
<pre> | |||
[strangelet](0) $ sudo mlxconfig -d /dev/mst/mt4115_pciconf0 query | grep LINK_TYPE | |||
LINK_TYPE_P1 IB(1) | |||
[strangelet](0) $ | |||
</pre> | |||
...and here we change it to Ethernet (type 2): | |||
<pre> | |||
[strangelet](0) $ sudo mlxconfig -d /dev/mst/mt4115_pciconf0 set LINK_TYPE_P1=2 | |||
Device #1: | |||
---------- | |||
Device type: ConnectX4 | |||
Name: N/A | |||
Description: N/A | |||
Device: /dev/mst/mt4115_pciconf0 | |||
Configurations: Next Boot New | |||
LINK_TYPE_P1 IB(1) ETH(2) | |||
Apply new Configuration? (y/n) [n] : y | |||
Applying... Done! | |||
-I- Please reboot machine to load new configurations. | |||
[strangelet](0) $ | |||
</pre> | |||
==See also== | |||
* [https://www.mellanox.com/support/firmware/firmware-downloads Firmware download] page. Firmware version can be acquired with <tt>ethtool -i IFACE</tt>. | |||