From patchwork Wed Nov 23 17:22:57 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wenzhuo Lu X-Patchwork-Id: 17221 X-Patchwork-Delegate: ferruh.yigit@amd.com Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [IPv6:::1]) by dpdk.org (Postfix) with ESMTP id 230C0BD4B; Thu, 24 Nov 2016 02:33:27 +0100 (CET) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by dpdk.org (Postfix) with ESMTP id 32A3E47CD for ; Thu, 24 Nov 2016 02:32:18 +0100 (CET) Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga105.jf.intel.com with ESMTP; 23 Nov 2016 17:32:17 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.31,689,1473145200"; d="scan'208";a="35041941" Received: from dpdk26.sh.intel.com ([10.239.128.228]) by fmsmga006.fm.intel.com with ESMTP; 23 Nov 2016 17:32:17 -0800 From: Wenzhuo Lu To: dev@dpdk.org Cc: Wenzhuo Lu Date: Wed, 23 Nov 2016 12:22:57 -0500 Message-Id: <1479921780-9813-14-git-send-email-wenzhuo.lu@intel.com> X-Mailer: git-send-email 1.9.3 In-Reply-To: <1479921780-9813-1-git-send-email-wenzhuo.lu@intel.com> References: <1479921780-9813-1-git-send-email-wenzhuo.lu@intel.com> Subject: [dpdk-dev] [PATCH 13/16] e1000/base: ability to force K1-off disabled X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" MAC-PHY desync may occur causing misdetection of link up event. Disabling K1-off feature can work around the problem. Signed-off-by: Wenzhuo Lu --- drivers/net/e1000/base/e1000_hw.h | 1 + drivers/net/e1000/base/e1000_ich8lan.c | 3 +++ 2 files changed, 4 insertions(+) diff --git a/drivers/net/e1000/base/e1000_hw.h b/drivers/net/e1000/base/e1000_hw.h index 14e2e87..39a2a41 100644 --- a/drivers/net/e1000/base/e1000_hw.h +++ b/drivers/net/e1000/base/e1000_hw.h @@ -960,6 +960,7 @@ struct e1000_dev_spec_ich8lan { E1000_MUTEX nvm_mutex; E1000_MUTEX swflag_mutex; bool nvm_k1_enabled; + bool disable_k1_off; bool eee_disable; u16 eee_lp_ability; #ifdef ULP_SUPPORT diff --git a/drivers/net/e1000/base/e1000_ich8lan.c b/drivers/net/e1000/base/e1000_ich8lan.c index 89265d2..92d92c8 100644 --- a/drivers/net/e1000/base/e1000_ich8lan.c +++ b/drivers/net/e1000/base/e1000_ich8lan.c @@ -1688,6 +1688,9 @@ STATIC s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw) fextnvm6 &= ~E1000_FEXTNVM6_K1_OFF_ENABLE; } + if (hw->dev_spec.ich8lan.disable_k1_off == true) + fextnvm6 &= ~E1000_FEXTNVM6_K1_OFF_ENABLE; + E1000_WRITE_REG(hw, E1000_FEXTNVM6, fextnvm6); }