From mboxrd@z Thu Jan 1 00:00:00 1970 From: Saeed Mahameed Subject: [for-next V3 10/10] net/mlx5: Activate support for 4K UARs Date: Mon, 9 Jan 2017 21:00:53 +0200 Message-ID: <1483988453-28551-11-git-send-email-saeedm@mellanox.com> References: <1483988453-28551-1-git-send-email-saeedm@mellanox.com> Cc: netdev@vger.kernel.org, linux-rdma@vger.kernel.org, Leon Romanovsky , Eli Cohen , Matan Barak , Leon Romanovsky , Saeed Mahameed To: "David S. Miller" , Doug Ledford Return-path: Received: from mail-il-dmz.mellanox.com ([193.47.165.129]:51966 "EHLO mellanox.co.il" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1762661AbdAITBH (ORCPT ); Mon, 9 Jan 2017 14:01:07 -0500 In-Reply-To: <1483988453-28551-1-git-send-email-saeedm@mellanox.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Eli Cohen 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 ff1f144..a16ee16 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, -- 2.7.4