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 324622BBB for ; Wed, 24 Feb 2016 15:26:59 +0100 (CET) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga101.fm.intel.com with ESMTP; 24 Feb 2016 06:26:55 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.22,494,1449561600"; d="scan'208";a="893670315" Received: from bricha3-mobl3.ger.corp.intel.com ([10.237.208.64]) by orsmga001.jf.intel.com with SMTP; 24 Feb 2016 06:26:53 -0800 Received: by (sSMTP sendmail emulation); Wed, 24 Feb 2016 14:26:52 +0025 Date: Wed, 24 Feb 2016 14:26:52 +0000 From: Bruce Richardson To: Wenzhuo Lu Message-ID: <20160224142652.GD19616@bricha3-MOBL3> References: <1450684592-13564-1-git-send-email-wenzhuo.lu@intel.com> <1454316159-9528-1-git-send-email-wenzhuo.lu@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1454316159-9528-1-git-send-email-wenzhuo.lu@intel.com> Organization: Intel Shannon Ltd. User-Agent: Mutt/1.5.23 (2014-03-12) 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: Wed, 24 Feb 2016 14:26:59 -0000 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. > Couple of typos present in the text above. /Bruce