linux-kernel - [PATCH v2 for-next 0/2] RDMA/hns: Support configuring congestion control algorithm with QP granularity

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Date: Thu, 8 Feb 2024 11:50:36 +0800
From: Junxian Huang <huangjunxian6@...ilicon.com>
To: <jgg@...pe.ca>, <leon@...nel.org>
CC: <linux-rdma@...r.kernel.org>, <linuxarm@...wei.com>,
	<linux-kernel@...r.kernel.org>, <huangjunxian6@...ilicon.com>
Subject: [PATCH v2 for-next 0/2] RDMA/hns: Support configuring congestion control algorithm with QP granularity

Commit 27c5fd271d8b ("RDMA/hns: The UD mode can only be configured
with DCQCN") adds a restriction that only DCQCN is supported for
UD QPs, but at the same time introduced other problem mistakenly.
Patch #1 reverts the previous modification and fixes the algorithm
issue for UD by configuring congestion control algorithm with QP
granularity.

Patch #2 adds support for userspace configuring congestion control
algorithm with QP granularity.

v1 -> v2:
* Not only revert but also fix the UD algorithm issue in patch #1.

Junxian Huang (1):
  RDMA/hns: Support userspace configuring congestion control algorithm
    with QP granularity

Luoyouming (1):
  RDMA/hns: Fix mis-modifying default congestion control algorithm

 drivers/infiniband/hw/hns/hns_roce_device.h | 26 +++++---
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c  | 18 ++----
 drivers/infiniband/hw/hns/hns_roce_hw_v2.h  |  3 +-
 drivers/infiniband/hw/hns/hns_roce_main.c   |  3 +
 drivers/infiniband/hw/hns/hns_roce_qp.c     | 71 +++++++++++++++++++++
 include/uapi/rdma/hns-abi.h                 | 17 +++++
 6 files changed, 118 insertions(+), 20 deletions(-)

--
2.30.0