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Commit 883371c4 authored by Noa Osherovich's avatar Noa Osherovich Committed by David S. Miller
Browse files

net/mlx5: Check FW limitations on log_max_qp before setting it 



When setting HCA capabilities, set log_max_qp to be the minimum
between the selected profile's value and the HCA limitation.

Fixes: 938fe83c ('net/mlx5_core: New device capabilities...')
Signed-off-by: default avatarNoa Osherovich <noaos@mellanox.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9da34cd3

drivers/net/ethernet/mellanox/mlx5/core/main.c

+7 −0
Original line number Diff line number Diff line
@@ -503,6 +503,13 @@ static int handle_hca_cap(struct mlx5_core_dev *dev) 
	MLX5_SET(cmd_hca_cap, set_hca_cap, pkey_table_size,

		 to_fw_pkey_sz(dev, 128));



	/* Check log_max_qp from HCA caps to set in current profile */

	if (MLX5_CAP_GEN_MAX(dev, log_max_qp) < profile[prof_sel].log_max_qp) {

		mlx5_core_warn(dev, "log_max_qp value in current profile is %d, changing it to HCA capability limit (%d)\n",

			       profile[prof_sel].log_max_qp,

			       MLX5_CAP_GEN_MAX(dev, log_max_qp));

		profile[prof_sel].log_max_qp = MLX5_CAP_GEN_MAX(dev, log_max_qp);

	}

	if (prof->mask & MLX5_PROF_MASK_QP_SIZE)

		MLX5_SET(cmd_hca_cap, set_hca_cap, log_max_qp,

			 prof->log_max_qp);