From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Michael Chan" Subject: Re: tg3 driver not advertising 1000mbit Date: Fri, 12 Jun 2009 15:01:46 -0700 Message-ID: <1244844106.9225.92.camel@HP1> References: <7e14b58794647ea1b1b0a644e14a11f6@localhost> <1244831838.9225.71.camel@HP1> <4A32CDE9.7020602@dupondje.be> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Cc: "netdev@vger.kernel.org" , "Matthew Carlson" , "David Christensen" To: "Jean-Louis Dupond" Return-path: Received: from mms1.broadcom.com ([216.31.210.17]:2624 "EHLO mms1.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1765664AbZFLWIk (ORCPT ); Fri, 12 Jun 2009 18:08:40 -0400 In-Reply-To: <4A32CDE9.7020602@dupondje.be> Sender: netdev-owner@vger.kernel.org List-ID: On Fri, 2009-06-12 at 14:51 -0700, Jean-Louis Dupond wrote: > Hello! > > Here is a mii-tool -vvv on a box that doesn't advertise gbit speeds! It > just doesn't advertise gbit @ random, sometimes it does, sometimes not! > Without any logic in it! > > # mii-tool -vvv > Using SIOCGMIIPHY=0x8947 > eth0: link ok > registers for MII PHY 1: > 1000 794d 0143 bed0 05e1 0000 0064 2001 > 0000 0300 0000 0000 0000 0000 0000 3000 Register 1 shows that autoneg did not complete (bit 5 is not set). The tg3 device has advertised 10/100/1000 in register 4 and register 9, but registers 5 and 0xa (link partner's advertisement registers are 0). When it works, these registers should look very different. Have you tried other cables? What is the link partner? > 0000 0101 0000 0000 0000 0000 0000 0000 > 7477 0104 0000 ffff 2801 0000 8000 0000 > product info: vendor 00:50:ef, model 45 rev 0 > basic mode: autonegotiation enabled > basic status: link ok > capabilities: 1000baseT-HD 1000baseT-FD 100baseTx-FD 100baseTx-HD > 10baseT-FD 10baseT-HD > advertising: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow- > control > > # dmesg | grep tg3 > [ 3.331702] tg3.c:v3.92.1 (June 9, 2008) > [ 18.238654] tg3: eth0: Link is up at 10 Mbps, half duplex. > [ 18.238654] tg3: eth0: Flow control is off for TX and off for RX. > >