From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id D71D02BD3 for ; Thu, 25 Feb 2016 02:35:28 +0100 (CET) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga101.fm.intel.com with ESMTP; 24 Feb 2016 17:35:28 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.22,496,1449561600"; d="scan'208";a="910692636" Received: from fmsmsx107.amr.corp.intel.com ([10.18.124.205]) by fmsmga001.fm.intel.com with ESMTP; 24 Feb 2016 17:35:27 -0800 Received: from shsmsx151.ccr.corp.intel.com (10.239.6.50) by fmsmsx107.amr.corp.intel.com (10.18.124.205) with Microsoft SMTP Server (TLS) id 14.3.248.2; Wed, 24 Feb 2016 17:35:27 -0800 Received: from shsmsx102.ccr.corp.intel.com ([169.254.2.232]) by SHSMSX151.ccr.corp.intel.com ([169.254.3.18]) with mapi id 14.03.0248.002; Thu, 25 Feb 2016 09:35:24 +0800 From: "Lu, Wenzhuo" To: "Richardson, Bruce" Thread-Topic: [dpdk-dev] [PATCH v2] ixgbe: fix link down issue on x550em_x Thread-Index: AQHRXMyGF2pLEKBFe0SJnrlnYI5+jJ863xkAgAFAukA= Date: Thu, 25 Feb 2016 01:35:24 +0000 Message-ID: <6A0DE07E22DDAD4C9103DF62FEBC09090343542B@shsmsx102.ccr.corp.intel.com> References: <1450684592-13564-1-git-send-email-wenzhuo.lu@intel.com> <1454316159-9528-1-git-send-email-wenzhuo.lu@intel.com> <20160224142652.GD19616@bricha3-MOBL3> In-Reply-To: <20160224142652.GD19616@bricha3-MOBL3> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.239.127.40] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Cc: "dev@dpdk.org" Subject: Re: [dpdk-dev] [PATCH v2] ixgbe: fix link down issue on x550em_x X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 25 Feb 2016 01:35:29 -0000 Hi Bruce, > -----Original Message----- > From: Richardson, Bruce > Sent: Wednesday, February 24, 2016 10:27 PM > To: Lu, Wenzhuo > Cc: dev@dpdk.org > Subject: Re: [dpdk-dev] [PATCH v2] ixgbe: fix link down issue on x550em_x >=20 > On Mon, Feb 01, 2016 at 04:42:39PM +0800, Wenzhuo Lu wrote: > > Normally the auto-negotiation is supported by FW. But on > > X550EM_X_10G_T it's not supported by FW. As the port of X550EM_X_10G_T > > is 10G. If we connect the port with a peer which is 1G. The link is > > always down. > > We have to supprted auto-neg by SW to avoid such link down issue. > > > > Signed-off-by: Wenzhuo Lu > > --- > > doc/guides/rel_notes/release_2_3.rst | 6 ++++++ > > drivers/net/ixgbe/ixgbe_ethdev.c | 38 > ++++++++++++++++++++++++++++++++++++ > > drivers/net/ixgbe/ixgbe_ethdev.h | 1 + > > 3 files changed, 45 insertions(+) > > > > diff --git a/doc/guides/rel_notes/release_2_3.rst > > b/doc/guides/rel_notes/release_2_3.rst > > index 99de186..a8d34d1 100644 > > --- a/doc/guides/rel_notes/release_2_3.rst > > +++ b/doc/guides/rel_notes/release_2_3.rst > > @@ -15,6 +15,12 @@ EAL > > Drivers > > ~~~~~~~ > > > > +* **ixgbe: fix link down issue on X550EM_X.** > > + Normally the auto-negotiation is supported by FW. SW need not care > > +about > > + that. But on x550em_x, FW doesn't support auto-neg. As the ports of > > +x550em_x > > + are 10G, if we connect the port will a peer which is 1G, the link > > +will always > > + be donw on x550em_x. > > + We will support auto-neg by SW to avoid this link down issue. > > >=20 > Couple of typos present in the text above. Sorry for that. I'll correct them. Thanks. >=20 > /Bruce