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Commit 911f4331 authored by Sagi Grimberg's avatar Sagi Grimberg Committed by Doug Ledford
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IB/mlx5: Expose correct max_fast_reg_page_list_len 



While documentation indicates that the number of translation
entries per memory key is unlimited, in practice, we can
only fit a finite amount of translation entries in a single
registration wqe (which is log_max_klm_list_size).

Signed-off-by: default avatarSagi Grimberg <sagig@mellanox.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 0025b0bd

drivers/infiniband/hw/mlx5/main.c

+2 −1
Original line number Original line Diff line number Diff line
@@ -539,7 +539,8 @@ static int mlx5_ib_query_device(struct ib_device *ibdev, 
	props->local_ca_ack_delay  = MLX5_CAP_GEN(mdev, local_ca_ack_delay);

	props->local_ca_ack_delay  = MLX5_CAP_GEN(mdev, local_ca_ack_delay);

	props->max_res_rd_atom	   = props->max_qp_rd_atom * props->max_qp;

	props->max_res_rd_atom	   = props->max_qp_rd_atom * props->max_qp;

	props->max_srq_sge	   = max_rq_sg - 1;

	props->max_srq_sge	   = max_rq_sg - 1;

	props->max_fast_reg_page_list_len = (unsigned int)-1;

	props->max_fast_reg_page_list_len =

		1 << MLX5_CAP_GEN(mdev, log_max_klm_list_size);

	get_atomic_caps(dev, props);

	get_atomic_caps(dev, props);

	props->masked_atomic_cap   = IB_ATOMIC_NONE;

	props->masked_atomic_cap   = IB_ATOMIC_NONE;

	props->max_mcast_grp	   = 1 << MLX5_CAP_GEN(mdev, log_max_mcg);

	props->max_mcast_grp	   = 1 << MLX5_CAP_GEN(mdev, log_max_mcg);