From 92cd667c0e8a67de024134be0a6f0bdb320606a8 Mon Sep 17 00:00:00 2001 From: Leon Romanovsky Date: Tue, 2 Jun 2020 15:55:47 +0300 Subject: RDMA/mlx5: Don't rely on FW to set zeros in ECE response The FW returns zeros in case feature is not enabled, but it is better to have the capability check and ensure that returned result is cleared. Fixes: 3e09a427ae7a ("RDMA/mlx5: Get ECE options from FW during create QP") Link: https://lore.kernel.org/r/20200602125548.172654-3-leon@kernel.org Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe --- drivers/infiniband/hw/mlx5/qp.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers/infiniband/hw') diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c index 9f0b7f1908da..18135f908971 100644 --- a/drivers/infiniband/hw/mlx5/qp.c +++ b/drivers/infiniband/hw/mlx5/qp.c @@ -1906,7 +1906,8 @@ static int create_xrc_tgt_qp(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp, base->container_mibqp = qp; base->mqp.event = mlx5_ib_qp_event; - params->resp.ece_options = MLX5_GET(create_qp_out, out, ece); + if (MLX5_CAP_GEN(mdev, ece_support)) + params->resp.ece_options = MLX5_GET(create_qp_out, out, ece); spin_lock_irqsave(&dev->reset_flow_resource_lock, flags); list_add_tail(&qp->qps_list, &dev->qp_list); @@ -2082,7 +2083,8 @@ static int create_user_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd, base->container_mibqp = qp; base->mqp.event = mlx5_ib_qp_event; - params->resp.ece_options = MLX5_GET(create_qp_out, out, ece); + if (MLX5_CAP_GEN(mdev, ece_support)) + params->resp.ece_options = MLX5_GET(create_qp_out, out, ece); get_cqs(qp->type, init_attr->send_cq, init_attr->recv_cq, &send_cq, &recv_cq); -- cgit v1.2.3