[PATCH rdma-next 0/2] Introduce mlx5 data direct placement (DDP)
From: Leon Romanovsky
Date: Tue Sep 03 2024 - 07:39:28 EST
From: Leon Romanovsky <leonro@xxxxxxxxxx>
Hi,
This series from Edward introduces mlx5 data direct placement (DDP)
feature.
This feature allows WRs on the receiver side of the QP to be consumed
out of order, permitting the sender side to transmit messages without
guaranteeing arrival order on the receiver side.
When enabled, the completion ordering of WRs remains in-order,
regardless of the Receive WRs consumption order.
RDMA Read and RDMA Atomic operations on the responder side continue to
be executed in-order, while the ordering of data placement for RDMA
Write and Send operations is not guaranteed.
Thanks
Edward Srouji (2):
net/mlx5: Introduce data placement ordering bits
RDMA/mlx5: Support OOO RX WQE consumption
drivers/infiniband/hw/mlx5/main.c | 8 +++++
drivers/infiniband/hw/mlx5/mlx5_ib.h | 1 +
drivers/infiniband/hw/mlx5/qp.c | 51 +++++++++++++++++++++++++---
include/linux/mlx5/mlx5_ifc.h | 24 +++++++++----
include/uapi/rdma/mlx5-abi.h | 5 +++
5 files changed, 78 insertions(+), 11 deletions(-)
--
2.46.0