From f502d834950a28e02651bb7e2cc7111ddd352644 Mon Sep 17 00:00:00 2001 From: Eli Cohen Date: Tue, 3 Jan 2017 23:55:28 +0200 Subject: [PATCH] net/mlx5: Activate support for 4K UARs Activate 4K UAR support for firmware versions that support it. Signed-off-by: Eli Cohen Reviewed-by: Matan Barak Signed-off-by: Leon Romanovsky Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/main.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c index ff1f14498c22..a16ee1603272 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c @@ -530,6 +530,10 @@ static int handle_hca_cap(struct mlx5_core_dev *dev) /* disable cmdif checksum */ MLX5_SET(cmd_hca_cap, set_hca_cap, cmdif_checksum, 0); + /* If the HCA supports 4K UARs use it */ + if (MLX5_CAP_GEN_MAX(dev, uar_4k)) + 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); err = set_caps(dev, set_ctx, set_sz, -- 2.20.1