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Commit 18ebd407 authored by Sagi Grimberg's avatar Sagi Grimberg Committed by Doug Ledford
Browse files

mlx4, mlx5, mthca: Expose max_sge_rd correctly 



Applications must not assume that max_sge and max_sge_rd are the same,
Hence expose max_sge_rd correctly as well.

Reported-by: default avatarSteve Wise <swise@opengridcomputing.com>
Signed-off-by: default avatarSagi Grimberg <sagig@mellanox.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent a724648e

drivers/infiniband/hw/mlx4/main.c

+1 −0
Original line number Diff line number Diff line
@@ -229,6 +229,7 @@ static int mlx4_ib_query_device(struct ib_device *ibdev, 
	props->max_qp_wr	   = dev->dev->caps.max_wqes - MLX4_IB_SQ_MAX_SPARE;

	props->max_sge		   = min(dev->dev->caps.max_sq_sg,

					 dev->dev->caps.max_rq_sg);

	props->max_sge_rd = props->max_sge;

	props->max_cq		   = dev->dev->quotas.cq;

	props->max_cqe		   = dev->dev->caps.max_cqes;

	props->max_mr		   = dev->dev->quotas.mpt;

drivers/infiniband/hw/mlx5/main.c

+1 −0
Original line number Diff line number Diff line
@@ -274,6 +274,7 @@ static int mlx5_ib_query_device(struct ib_device *ibdev, 
		     sizeof(struct mlx5_wqe_ctrl_seg)) /

		     sizeof(struct mlx5_wqe_data_seg);

	props->max_sge = min(max_rq_sg, max_sq_sg);

	props->max_sge_rd = props->max_sge;

	props->max_cq		   = 1 << MLX5_CAP_GEN(mdev, log_max_cq);

	props->max_cqe = (1 << MLX5_CAP_GEN(mdev, log_max_eq_sz)) - 1;

	props->max_mr		   = 1 << MLX5_CAP_GEN(mdev, log_max_mkey);

drivers/infiniband/hw/mthca/mthca_provider.c

+1 −0
Original line number Diff line number Diff line
@@ -97,6 +97,7 @@ static int mthca_query_device(struct ib_device *ibdev, struct ib_device_attr *pr 
	props->max_qp              = mdev->limits.num_qps - mdev->limits.reserved_qps;

	props->max_qp_wr           = mdev->limits.max_wqes;

	props->max_sge             = mdev->limits.max_sg;

	props->max_sge_rd          = props->max_sge;

	props->max_cq              = mdev->limits.num_cqs - mdev->limits.reserved_cqs;

	props->max_cqe             = mdev->limits.max_cqes;

	props->max_mr              = mdev->limits.num_mpts - mdev->limits.reserved_mrws;