This feature is only supported on:
- ConnectX-5 adapter cards and above
- RC and XRC QPs
- DC transport
In certain fabric configurations, InfiniBand packets for a given QP may take up different paths in a network from source to destination. This results into packets being received in an out-of-order manner. These packets can now be handled instead of being dropped, in order to avoid retransmission, by:
- Achieving better network utilization
- Decreasing latency
Data will be placed into host memory in an out-of-order manner when out-of-order messages are received.
For information on how to set up out-of-order processing by the QP, please refer to HowTo Configure Adaptive Routing and SHIELD Community post.