[ofa-general] Atomic operation question.

[Dotan Barak]

Tang, Changqing wrote:
> Even if the two ports are on different subnet ?
>
> According to you, atomic operation is on per card basis, not on per port
> basis, right ?
>
>
> --CQ 
>   

Yes, even if the ports are in different subnets.

The atomicity is being done in the HCA to a specific memory location and 
it don't care from which QP
(or from which IB port) is was received from.

Dotan