linux-kernel - [PATCH rdma-next] RDMA/mlx5: Relax DCS QP creation checks

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Message-Id: <3e7b3363fd73686176cc584295e86832a7cf99b2.1630320354.git.leonro@nvidia.com>
Date:   Mon, 30 Aug 2021 13:48:49 +0300
From:   Leon Romanovsky <leon@...nel.org>
To:     Doug Ledford <dledford@...hat.com>,
        Jason Gunthorpe <jgg@...dia.com>
Cc:     Lior Nahmanson <liorna@...dia.com>, linux-kernel@...r.kernel.org,
        linux-rdma@...r.kernel.org, Meir Lichtinger <meirl@...dia.com>
Subject: [PATCH rdma-next] RDMA/mlx5: Relax DCS QP creation checks

From: Lior Nahmanson <liorna@...dia.com>

In order to create DCS QPs, we don't need to rely on both
log_max_dci_stream_channels and log_max_dci_errored_streams capabilities.

Fixes: 11656f593a86 ("RDMA/mlx5: Add DCS offload support")
Signed-off-by: Lior Nahmanson <liorna@...dia.com>
Signed-off-by: Leon Romanovsky <leonro@...dia.com>
---
Jason,

Please add this patch in the upcoming PR for the feature that was
accepted in this cycle.

Thanks
---
 drivers/infiniband/hw/mlx5/qp.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index 81e3170a1ae6..4e2d0f8f267f 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -2813,8 +2813,7 @@ static int process_vendor_flags(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
 	process_vendor_flag(dev, &flags, MLX5_QP_FLAG_TYPE_DCI, true, qp);
 	process_vendor_flag(dev, &flags, MLX5_QP_FLAG_TYPE_DCT, true, qp);
 	process_vendor_flag(dev, &flags, MLX5_QP_FLAG_DCI_STREAM,
-			    MLX5_CAP_GEN(mdev, log_max_dci_stream_channels) &&
-			    MLX5_CAP_GEN(mdev, log_max_dci_errored_streams),
+			    MLX5_CAP_GEN(mdev, log_max_dci_stream_channels),
 			    qp);
 
 	process_vendor_flag(dev, &flags, MLX5_QP_FLAG_SIGNATURE, true, qp);
-- 
2.31.1