From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?B?S3J6eXN6dG9mIE9sxJlkemtp?= Subject: Re: bnx2x + SFP+ DA/2.6.33.3: Got bad status 0x0 when reading from SFP+ EEPROM -> SFP+ module is not initialized Date: Fri, 21 May 2010 15:19:16 +0200 Message-ID: <4BF68854.5060409@ans.pl> References: <4BF56CA6.8080306@ans.pl> <1274377770.28702.4.camel@lb-tlvb-eilong.il.broadcom.com> <4BF57ADF.1060203@ans.pl> <1274381113.28702.6.camel@lb-tlvb-eilong.il.broadcom.com> <4BF59058.6050205@ans.pl> <4BF59ABB.9070600@hp.com> <4BF5A19E.5010003@ans.pl> <1274446713.11082.3.camel@lb-tlvb-eilong.il.broadcom.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Rick Jones , Michael Chan , "netdev@vger.kernel.org" To: eilong@broadcom.com Return-path: Received: from bizon.gios.gov.pl ([195.187.34.71]:42073 "EHLO bizon.gios.gov.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753774Ab0EUNT3 (ORCPT ); Fri, 21 May 2010 09:19:29 -0400 In-Reply-To: <1274446713.11082.3.camel@lb-tlvb-eilong.il.broadcom.com> Sender: netdev-owner@vger.kernel.org List-ID: On 2010-05-21 14:58, Eilon Greenstein wrote: > On Thu, 2010-05-20 at 13:54 -0700, Krzysztof Ol=C4=99dzki wrote: >> On 2010-05-20 22:25, Rick Jones wrote: >>> Some simple/simplistic thoughts/questions... >>> >>> Has the DAC been used successfully prior to this? >> >> Yes. It was successfully used to connect two HP switches, before I >> received SFP+ SR modules, that allowed me to put the switches into >> distanced rooms. > > Krzysztof, > > I would like to check in what speed the I2C is running at, and while = we > are there, to make sure it is at low speed (100KHz and not 400KHz). C= an > you please add this patch and let me know what you see: Sure. > > diff --git a/drivers/net/bnx2x_link.c b/drivers/net/bnx2x_link.c [bnx2x_8727_read_sfp_module_eeprom:2774(eth4)]I2C 2W speed 0x0, bit 8 0 [bnx2x_8727_read_sfp_module_eeprom:2774(eth5)]I2C 2W speed 0x0, bit 8 0 > Since we are already off for the weekend, I couldn't find a machine w= ith > this kind of board to test it for myself. On top of that, I don't hav= e > this type of DAC cable, so I need your help in this debug process. No problem. There is no need to ask for a help a person who depends on=20 your support. ;) I would like to solve it as soon as possible so I'm=20 willing to test everything you send me. ;) best regards, Krzysztof Ol=C4=99dzki