From patchwork Thu Sep 28 09:47:51 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiawen Wu X-Patchwork-Id: 132102 X-Patchwork-Delegate: ferruh.yigit@amd.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 2F4AC4265E; Thu, 28 Sep 2023 11:37:38 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id CF24E40ED0; Thu, 28 Sep 2023 11:37:24 +0200 (CEST) Received: from smtpbguseast1.qq.com (smtpbguseast1.qq.com [54.204.34.129]) by mails.dpdk.org (Postfix) with ESMTP id 8C9C940E01; Thu, 28 Sep 2023 11:37:22 +0200 (CEST) X-QQ-mid: bizesmtp74t1695893831tpulabz1 Received: from wxdbg.localdomain.com ( [115.200.229.121]) by bizesmtp.qq.com (ESMTP) with id ; Thu, 28 Sep 2023 17:37:11 +0800 (CST) X-QQ-SSF: 01400000000000K0Z000000A0000000 X-QQ-FEAT: vXwDnSb1WraqoNa9RSxQQZzIyiTgxMqcHSPYVensIyK1/iBfRouGrIQpduG2T gRCnrFXU3RUETc/tDaJ0JUL5GkJm/3eiBcQ7CsDd3vMHDUaCSzTmSIZHcDr+oW9vU+SQlqw gfdptpuuM/YCgYwVVH6W2xp5LIIaDXLqTrQRb4Qo915qxZSzhzNOm3c9XJaoHp5mFz9QQhu YVMwo3znYVr31YmSL4EY2NlyGw9FwX3pSr7o8Me3dws3pyarrVW8aS1e4erT9Px2HDsfgNJ ANK23NR1FLQQxFHyBLEVLYrJNAt5ZCrIAOo27Ne0p7N0d7AAywlTGRx9tCLmDW/SWfsKvAi kbmk56/4Vt7QwCiM7exAlZ78FKcyk1v33j1NZnM1B4Agffpl/xliycE2CPM/9rHgUXb2cII 6FFVoPbxolY= X-QQ-GoodBg: 2 X-BIZMAIL-ID: 18328242564598368118 From: Jiawen Wu To: dev@dpdk.org Cc: Jiawen Wu , stable@dpdk.org Subject: [PATCH 04/11] net/ngbe: prevent the NIC from slowing down link speed Date: Thu, 28 Sep 2023 17:47:51 +0800 Message-Id: <20230928094758.1076236-5-jiawenwu@trustnetic.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20230928094758.1076236-1-jiawenwu@trustnetic.com> References: <20230928094758.1076236-1-jiawenwu@trustnetic.com> MIME-Version: 1.0 X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtp:trustnetic.com:qybglogicsvrgz:qybglogicsvrgz5a-1 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org When the signal quality is bad, the internal PHY may slow down to 100M. Fix this weird behavior by setting dis fall 100M bit. Fixes: 696a82117875 ("net/ngbe: redesign internal PHY init flow") Cc: stable@dpdk.org Signed-off-by: Jiawen Wu --- drivers/net/ngbe/base/ngbe_phy_rtl.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/ngbe/base/ngbe_phy_rtl.c b/drivers/net/ngbe/base/ngbe_phy_rtl.c index b0eb6c97c0..ba63a8058a 100644 --- a/drivers/net/ngbe/base/ngbe_phy_rtl.c +++ b/drivers/net/ngbe/base/ngbe_phy_rtl.c @@ -148,6 +148,11 @@ s32 ngbe_init_phy_rtl(struct ngbe_hw *hw) hw->phy.write_reg(hw, 27, 0xa42, 0x8011); hw->phy.write_reg(hw, 28, 0xa42, 0x5737); + /* Disable fall to 100m if signal is not good */ + hw->phy.read_reg(hw, 17, 0xa44, &value); + value &= ~0x8; + hw->phy.write_reg(hw, 17, 0xa44, value); + hw->phy.write_reg(hw, RTL_SCR, 0xa46, RTL_SCR_EXTINI); hw->phy.read_reg(hw, RTL_SCR, 0xa46, &value); if (!(value & RTL_SCR_EXTINI)) {