From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp.tuxdriver.com (charlotte.tuxdriver.com [70.61.120.58]) by dpdk.org (Postfix) with ESMTP id C7EBF5902 for ; Tue, 30 Sep 2014 14:51:45 +0200 (CEST) Received: from hmsreliant.think-freely.org ([2001:470:8:a08:7aac:c0ff:fec2:933b] helo=localhost) by smtp.tuxdriver.com with esmtpsa (TLSv1:AES128-SHA:128) (Exim 4.63) (envelope-from ) id 1XYx0Y-0004v1-Vn; Tue, 30 Sep 2014 08:58:25 -0400 Date: Tue, 30 Sep 2014 08:58:22 -0400 From: Neil Horman To: Ouyang Changchun Message-ID: <20140930125822.GE2193@hmsreliant.think-freely.org> References: <1411974986-28137-1-git-send-email-changchun.ouyang@intel.com> <1411974986-28137-15-git-send-email-changchun.ouyang@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1411974986-28137-15-git-send-email-changchun.ouyang@intel.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Spam-Score: -2.9 (--) X-Spam-Status: No Cc: dev@dpdk.org Subject: Re: [dpdk-dev] [PATCH v2 14/18] ixgbe: Remove unnecessary delay 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: , X-List-Received-Date: Tue, 30 Sep 2014 12:51:46 -0000 On Mon, Sep 29, 2014 at 03:16:22PM +0800, Ouyang Changchun wrote: > This patch removes unnecessary delay when setting up physical link > and negotiating in IXGBE share code. > Why was this there in the first place then? Was there some older hardware that required it? If so, is there a need to continue compatibility with it. More detail would be appreciated here. Neil