Is it possible to disable DDIO for a ConnectX NIC (rather than disable DDIO for all IO devices) ?
Mellanox Socket Direct enables Intel® DDIO optimization on both sockets by creating a direct connection between the sockets and the adapter card.
I don’t think NIC side can disable this. What’s the purpose you want to disable it?
Maybe you can consult Intel® vendor if it can be disable for specific device.
Thank you for your reply