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
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