Recently got these nodes and wanted to share a simple hint on converting these to 40gbe.
So because this system truly only has 2x1gbe and only one x16 half-height slot available for your expansion, you'd probably want to use builtin QSFP+ as ethernet. Totally makes sense.
And because there's no lspci listing for this motherboard, especially it's mellanox chip, here it is:
This is a standard mcx3 chip 27500, aka
Because of that, you can use opensource mstflint toolkit to simply edit its port from VPI to ETH with one command:
That's it, cycle power and this saves you pcie slot for other things like m.2 or whatever you want there.
So because this system truly only has 2x1gbe and only one x16 half-height slot available for your expansion, you'd probably want to use builtin QSFP+ as ethernet. Totally makes sense.
And because there's no lspci listing for this motherboard, especially it's mellanox chip, here it is:
02:00.0 0200: 15b3:1003
This is a standard mcx3 chip 27500, aka
Ethernet controller: Mellanox Technologies MT27500 Family [ConnectX-3]
Because of that, you can use opensource mstflint toolkit to simply edit its port from VPI to ETH with one command:
mstconfig -d 02:00.0 set LINK_TYPE_P1=ETH
That's it, cycle power and this saves you pcie slot for other things like m.2 or whatever you want there.