From: Leon Romanovsky <leon@kernel.org>
To: Jason Gunthorpe <jgg@nvidia.com>
Cc: Or Har-Toov <ohartoov@nvidia.com>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>,
linux-rdma@vger.kernel.org, netdev@vger.kernel.org,
Paolo Abeni <pabeni@redhat.com>,
Saeed Mahameed <saeedm@nvidia.com>
Subject: [PATCH rdma-next 2/3] RDMA/mlx5: Disable out-of-order in integrity enabled QPs
Date: Sun, 19 Mar 2023 14:59:31 +0200 [thread overview]
Message-ID: <362de42cdc7a541afa5b1fd0ec6ae706061764a2.1679230449.git.leon@kernel.org> (raw)
In-Reply-To: <cover.1679230449.git.leon@kernel.org>
From: Or Har-Toov <ohartoov@nvidia.com>
Set retry_mode to GO_BACK_N when qp is created with INTEGRITY_EN flag
because out-of-order is not supported when doing HW offload of signature
operations.
Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
drivers/infiniband/hw/mlx5/qp.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index f04adc18e63b..d32b644885b3 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -60,6 +60,10 @@ enum raw_qp_set_mask_map {
MLX5_RAW_QP_RATE_LIMIT = 1UL << 1,
};
+enum {
+ MLX5_QP_RM_GO_BACK_N = 0x1,
+};
+
struct mlx5_modify_raw_qp_param {
u16 operation;
@@ -2521,6 +2525,10 @@ static int create_kernel_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd,
if (qp->flags & IB_QP_CREATE_IPOIB_UD_LSO)
MLX5_SET(qpc, qpc, ulp_stateless_offload_mode, 1);
+ if (qp->flags & IB_QP_CREATE_INTEGRITY_EN &&
+ MLX5_CAP_GEN(mdev, go_back_n))
+ MLX5_SET(qpc, qpc, retry_mode, MLX5_QP_RM_GO_BACK_N);
+
err = mlx5_qpc_create_qp(dev, &base->mqp, in, inlen, out);
kvfree(in);
if (err)
--
2.39.2
next prev parent reply other threads:[~2023-03-19 13:00 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-19 12:59 [PATCH rdma-next 0/3] Enable IB out-of-order by default in mlx5 Leon Romanovsky
2023-03-19 12:59 ` [PATCH mlx5-next 1/3] net/mlx5: Expose bits for enabling out-of-order by default Leon Romanovsky
2023-03-19 12:59 ` Leon Romanovsky [this message]
2023-03-19 12:59 ` [PATCH mlx5-next 3/3] net/mlx5: Set out of order (ooo) " Leon Romanovsky
2023-03-23 8:25 ` [PATCH rdma-next 0/3] Enable IB out-of-order by default in mlx5 Leon Romanovsky
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