From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?Q?S=C3=A9bastien_Bocahu?= Subject: Re: Linux kernel commit breaks IPMI on iface downing Date: Fri, 14 Aug 2015 11:22:22 +0200 Message-ID: References: <1439515834.7684.24.camel@LTIRV-MCHAN1.corp.ad.broadcom.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: harish.patil@qlogic.com, davem@davemloft.net, netdev@vger.kernel.org To: Michael Chan Return-path: Received: from mail-la0-f48.google.com ([209.85.215.48]:33462 "EHLO mail-la0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753289AbbHNJWo convert rfc822-to-8bit (ORCPT ); Fri, 14 Aug 2015 05:22:44 -0400 Received: by lalv9 with SMTP id v9so40477640lal.0 for ; Fri, 14 Aug 2015 02:22:42 -0700 (PDT) In-Reply-To: <1439515834.7684.24.camel@LTIRV-MCHAN1.corp.ad.broadcom.com> Sender: netdev-owner@vger.kernel.org List-ID: The BNX2 firmware has already been updated to the latest version available from Dell. root@debian:~# ethtool -i eth0 | grep firmware firmware-version: 6.4.5 bc 5.2.3 NCSI 2.0.11 2015-08-14 3:30 GMT+02:00 Michael Chan : > +netdev and Harish who is the current maintainer of bnx2 at qlogic. > > The patch in question effectively just removes the > bnx2_set_power_state() call during "ip link set down". If there is > IPMI, the firmware should know the link needs to stay up when the dri= ver > resets the device during bnx2_close(). This should be a very common > scenario. Please provide the firmware versions to Harish with ethtoo= l > -i. Perhaps upgrading the firmware can resolve this issue. > > On Thu, 2015-08-13 at 15:47 +0200, S=C3=A9bastien Bocahu wrote: >> Hi, >> >> Being unable to install Debian Jessie via IPMI on mainstream Dell R4= 10 >> servers that used to be well supported by Debian Wheezy, I tracked t= he >> problem down to a specific commit in the Linux kernel, specifically = in >> the bnx2 driver. >> The issue is that "ip link set eth0 down" takes the Ethernet part of >> the BMC down (shared NIC for BMC+eth0), cutting off the IPMI session= =2E >> The BMC gets back only after power cycling. >> >> Hardware: Dell R410 w/ a Broadcom 5716 NIC: >> Ethernet controller: Broadcom Corporation NetXtreme II BCM5716 Gigab= it >> Ethernet (rev 20) ) >> Part number: BCM95716C1 >> Vendor specific: 6.4.5 (Firmware has been updated to the latest >> version available by Dell's support website) >> >> I built many kernels to track which change caused the issue and it >> seems that's : >> 25bfb1dd4ba3b2d9a49ce9d9b0cd7be1840e15ed (bnx2: Add pci shutdown han= dler.) >> >> Before, 'ip link set eth0 down' would just cause 2/3s of packet loss >> but IPMI would still be working afterwards. >> >> I'm available for more informations and/or testing if needed. >> >> Thanks ! >> >> >> > > --=20 S=C3=A9bastien Bocahu IT infrastructure manager 4, Rue Montrochet - 69002 - Lyon, France +33 (0)437651704 - Phone ReportLinker.com