Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756051Ab3C2IVF (ORCPT ); Fri, 29 Mar 2013 04:21:05 -0400 Received: from rtits2.realtek.com ([60.250.210.242]:42732 "EHLO rtits2.realtek.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752149Ab3C2IVD (ORCPT ); Fri, 29 Mar 2013 04:21:03 -0400 X-SpamFilter-By: BOX Solutions SpamTrap 5.19 with qID r2T8KrA1026335, This message is released by code: ctlocs8528 From: hayeswang To: "'Francois Romieu'" CC: , , , "'Ryankao'" References: <4EECA12DD88643FD9006350514D96C8E@realtek.com.tw> <20130328231955.GA26182@electric-eye.fr.zoreil.com> <83FC3118294143DC81063B29EF570FC1@realtek.com.tw> <20130329072056.GA31269@electric-eye.fr.zoreil.com> Subject: RE: r8169 auto speed down issue Date: Fri, 29 Mar 2013 16:20:43 +0800 Message-ID: <555174DCA0B0431BB3AE9CCD464E5896@realtek.com.tw> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook 11 Thread-Index: Ac4sTfiJ5RZX7aW3RSm4eGnEiYXTOQAAs4cQ In-Reply-To: <20130329072056.GA31269@electric-eye.fr.zoreil.com> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6157 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1186 Lines: 28 Francois Romieu [mailto:romieu@fr.zoreil.com] > Sent: Friday, March 29, 2013 3:21 PM > To: Hayeswang > Cc: netdev@vger.kernel.org; linux-kernel@vger.kernel.org; > bowgotsai@google.com; Ryankao > Subject: Re: r8169 auto speed down issue > [...] > > I don't get your point. Can you reformulate ? Sorry for my unclear descriptor. I just think a case that the nic suspends or shutdowns without cable plugging. Then, the cable is plugged again. If the nic speed down to 10M and the link partner force 100M, the issue appears again. If the nic doesn't speed down for normal link partner, it requires more power when the linking recovers. Finally, I determine to set the speed to 10M when the link partner supports 10M. And for the other case, setting the speed to 100M. This avoids the giga nic to keep the speed to 1000M, and could fix this issue. However, I wonder if there is a switch which forces the speed to giga. Best Regards, Hayes -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/