linux-kernel - RE: [PATCH v3] ixgbe: Manual AN-37 for troublesome link partners for X550 SFI

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <SN6PR11MB35188E7EA01052437DFEDB50EB6D9@SN6PR11MB3518.namprd11.prod.outlook.com>
Date:   Thu, 18 Aug 2022 21:49:23 +0000
From:   "Switzer, David" <david.switzer@...el.com>
To:     "Daly, Jeff" <jeffd@...icom-usa.com>,
        "intel-wired-lan@...osl.org" <intel-wired-lan@...osl.org>
CC:     "Brandeburg, Jesse" <jesse.brandeburg@...el.com>,
        "Nguyen, Anthony L" <anthony.l.nguyen@...el.com>,
        "David S. Miller" <davem@...emloft.net>,
        "Jakub Kicinski" <kuba@...nel.org>,
        "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v3] ixgbe: Manual AN-37 for troublesome link partners for
 X550 SFI



>-----Original Message-----
>From: Daly, Jeff <jeffd@...icom-usa.com>
>Sent: Thursday, July 21, 2022 7:11 AM
>To: intel-wired-lan@...osl.org
>Cc: Brandeburg, Jesse <jesse.brandeburg@...el.com>; Nguyen, Anthony L
><anthony.l.nguyen@...el.com>; David S. Miller <davem@...emloft.net>;
>Jakub Kicinski <kuba@...nel.org>; intel-wired-lan@...ts.osuosl.org;
>netdev@...r.kernel.org; linux-kernel@...r.kernel.org
>Subject: [PATCH v3] ixgbe: Manual AN-37 for troublesome link partners for
>X550 SFI
>
>Some (Juniper MX5) SFP link partners exhibit a disinclination to autonegotiate
>with X550 configured in SFI mode.  This patch enables a manual AN-37 restart
>to work around the problem.
>
>Signed-off-by: Jeff Daly <jeffd@...icom-usa.com>
>---
> drivers/net/ethernet/intel/ixgbe/ixgbe_type.h |  3 +
>drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 56 ++++++++++++++++++-
> 2 files changed, 56 insertions(+), 3 deletions(-)

We don't have the specific link partner that this patch fixes, but we have verified that AN wasn't hindered or broken with the link partners that we have.

Tested-by: Dave Switzer <david.switzer@...el.com>