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

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[ Upstream commit 883371c453b937f9eb581fb4915210865982736f ]

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

Fixes: 938fe83c8dcb ('net/mlx5_core: New device capabilities...')
Signed-off-by: Noa Osherovich <noaos@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Noa Osherovich 2016-12-28 14:58:32 +02:00 committed by Greg Kroah-Hartman
parent 3f2847608c
commit 18d971f84c
1 changed files with 7 additions and 0 deletions
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7
drivers/net/ethernet/mellanox/mlx5/core/main.c
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@ -432,6 +432,13 @@ 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(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);