From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vincent JARDIN Subject: Re: [PATCH 1/7] [PATCH 4/8] igb: workaround errata with wthresh on 82576 Date: Wed, 05 Jun 2013 16:22:19 +0200 Message-ID: <51AF499B.8020903@6wind.com> References: <20130530171234.301927271@vyatta.com> <20130530171626.764056062@vyatta.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit To: dev-VfR2kkLFssw@public.gmane.org Return-path: In-Reply-To: <20130530171626.764056062-ZtmgI6mnKB3QT0dZR+AlfA@public.gmane.org> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces-VfR2kkLFssw@public.gmane.org Sender: "dev" On 30/05/2013 19:12, Stephen Hemminger wrote: > The 82576 has known issues which require the write threshold to be set to 1. > See: > http://download.intel.com/design/network/specupdt/82576_SPECUPDATE.pdf > > If not then single packets will hang in transmit ring until more arrive. > Simple tests like ping will fail. > > Signed-off-by: Stephen Hemminger Reviewed-by: Vincent Jardin It looks good. Thank you.