From patchwork Tue Jan 14 15:55:27 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Moshe Shemesh X-Patchwork-Id: 1222874 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=mellanox.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 47xw6N13mPz9sPW for ; Wed, 15 Jan 2020 02:55:56 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729148AbgANPzw (ORCPT ); Tue, 14 Jan 2020 10:55:52 -0500 Received: from mail-il-dmz.mellanox.com ([193.47.165.129]:41676 "EHLO mellanox.co.il" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727044AbgANPzv (ORCPT ); Tue, 14 Jan 2020 10:55:51 -0500 Received: from Internal Mail-Server by MTLPINE1 (envelope-from moshe@mellanox.com) with ESMTPS (AES256-SHA encrypted); 14 Jan 2020 17:55:45 +0200 Received: from dev-l-vrt-136.mtl.labs.mlnx (dev-l-vrt-136.mtl.labs.mlnx [10.134.136.1]) by labmailer.mlnx (8.13.8/8.13.8) with ESMTP id 00EFtjD4015233; Tue, 14 Jan 2020 17:55:45 +0200 Received: from dev-l-vrt-136.mtl.labs.mlnx (localhost [127.0.0.1]) by dev-l-vrt-136.mtl.labs.mlnx (8.14.7/8.14.7) with ESMTP id 00EFtjtl019702; Tue, 14 Jan 2020 17:55:45 +0200 Received: (from moshe@localhost) by dev-l-vrt-136.mtl.labs.mlnx (8.14.7/8.14.7/Submit) id 00EFtjK4019701; Tue, 14 Jan 2020 17:55:45 +0200 From: Moshe Shemesh To: "David S. Miller" Cc: Alexander Duyck , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Moshe Shemesh Subject: [PATCH net-next RFC 2/3] net/mlx5: Add functions to set/query MFRL register Date: Tue, 14 Jan 2020 17:55:27 +0200 Message-Id: <1579017328-19643-3-git-send-email-moshe@mellanox.com> X-Mailer: git-send-email 1.8.4.3 In-Reply-To: <1579017328-19643-1-git-send-email-moshe@mellanox.com> References: <1579017328-19643-1-git-send-email-moshe@mellanox.com> Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Add functions to set the reset level required and to query the reset levels supported by fw. Signed-off-by: Moshe Shemesh --- drivers/net/ethernet/mellanox/mlx5/core/fw.c | 44 ++++++++++++++++++++++ .../net/ethernet/mellanox/mlx5/core/mlx5_core.h | 2 + 2 files changed, 46 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fw.c b/drivers/net/ethernet/mellanox/mlx5/core/fw.c index 1723229..1c6dfe9 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fw.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/fw.c @@ -769,3 +769,47 @@ int mlx5_fw_version_query(struct mlx5_core_dev *dev, return 0; } + +static int mlx5_reg_mfrl_set(struct mlx5_core_dev *dev, u8 reset_level, + u8 reset_type_sel) +{ + u32 out[MLX5_ST_SZ_DW(mfrl_reg)]; + u32 in[MLX5_ST_SZ_DW(mfrl_reg)] = {}; + + MLX5_SET(mfrl_reg, in, reset_level, reset_level); + MLX5_SET(mfrl_reg, in, rst_type_sel, reset_type_sel); + + return mlx5_core_access_reg(dev, in, sizeof(in), out, + sizeof(out), MLX5_REG_MFRL, 0, 1); +} + +static int mlx5_reg_mfrl_query(struct mlx5_core_dev *dev, u8 *reset_level, + u8 *reset_type_sel, u8 *reset_type) +{ + u32 out[MLX5_ST_SZ_DW(mfrl_reg)] = {}; + u32 in[MLX5_ST_SZ_DW(mfrl_reg)] = {}; + int err; + + err = mlx5_core_access_reg(dev, in, sizeof(in), out, + sizeof(out), MLX5_REG_MFRL, 0, 0); + if (err) + return err; + + *reset_level = MLX5_GET(mfrl_reg, out, reset_level); + *reset_type = MLX5_GET(mfrl_reg, out, reset_type); + *reset_type_sel = MLX5_GET(mfrl_reg, out, rst_type_sel); + + return 0; +} + +int mlx5_fw_query_reset_level(struct mlx5_core_dev *dev, u8 *reset_level) +{ + u8 reset_type_sel, reset_type; + + return mlx5_reg_mfrl_query(dev, reset_level, &reset_type_sel, &reset_type); +} + +int mlx5_fw_set_reset_level(struct mlx5_core_dev *dev, u8 reset_level) +{ + return mlx5_reg_mfrl_set(dev, reset_level, 0); +} diff --git a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h index da67b28..1b55a5a 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h @@ -210,6 +210,8 @@ int mlx5_firmware_flash(struct mlx5_core_dev *dev, const struct firmware *fw, struct netlink_ext_ack *extack); int mlx5_fw_version_query(struct mlx5_core_dev *dev, u32 *running_ver, u32 *stored_ver); +int mlx5_fw_query_reset_level(struct mlx5_core_dev *dev, u8 *reset_level); +int mlx5_fw_set_reset_level(struct mlx5_core_dev *dev, u8 reset_level); void mlx5e_init(void); void mlx5e_cleanup(void);