Commit 91828bd8 authored by Majd Dibbiny's avatar Majd Dibbiny Committed by Saeed Mahameed

net/mlx5: Enable 4K UAR only when page size is bigger than 4K

When the page size isn't bigger than 4K, there is no added value of enabling 4K
UAR feature in the Firmware.

Modified the condition of enabling the 4K UAR accordingly.

Fixes: f502d834 ("net/mlx5: Activate support for 4K UARs")
Signed-off-by: default avatarMajd Dibbiny <majd@mellanox.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
parent 53acd76c
...@@ -537,8 +537,10 @@ static int handle_hca_cap(struct mlx5_core_dev *dev) ...@@ -537,8 +537,10 @@ static int handle_hca_cap(struct mlx5_core_dev *dev)
/* disable cmdif checksum */ /* disable cmdif checksum */
MLX5_SET(cmd_hca_cap, set_hca_cap, cmdif_checksum, 0); MLX5_SET(cmd_hca_cap, set_hca_cap, cmdif_checksum, 0);
/* If the HCA supports 4K UARs use it */ /* Enable 4K UAR only when HCA supports it and page size is bigger
if (MLX5_CAP_GEN_MAX(dev, uar_4k)) * than 4K.
*/
if (MLX5_CAP_GEN_MAX(dev, uar_4k) && PAGE_SIZE > 4096)
MLX5_SET(cmd_hca_cap, set_hca_cap, uar_4k, 1); MLX5_SET(cmd_hca_cap, set_hca_cap, uar_4k, 1);
MLX5_SET(cmd_hca_cap, set_hca_cap, log_uar_page_sz, PAGE_SHIFT - 12); MLX5_SET(cmd_hca_cap, set_hca_cap, log_uar_page_sz, PAGE_SHIFT - 12);
......
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