From 883371c453b937f9eb581fb4915210865982736f Mon Sep 17 00:00:00 2001
From: Noa Osherovich <noaos@mellanox.com>
Date: Wed, 28 Dec 2016 14:58:32 +0200
Subject: [PATCH] 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: 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>
---
drivers/net/ethernet/mellanox/mlx5/core/main.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index 54e5a786f1915..23c12f1aaa397 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -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);
--
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