Break out cable 100GB for mellanox nic

[kevin wilson]

Does a break out cable which is known to work with connectx 5 should work out of te box without furteher setting (like ethtool) ? I am referring to a 100 GB cable with 4 x 25 ends, which connects a dual port connectx-5 nic to I40E .

Or does it require setting or flushing firmware with tools like flint, mlxconfig, mlxcable, etc ,?

Regards,
Kevin

 

[Rand__]

First of all splitting ports only works on switches, not cards.
Then if you are referring to a switch port then you have to configure the port to be in split mode, it will not work out of the box