From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ea0-x22a.google.com (mail-ea0-x22a.google.com [IPv6:2a00:1450:4013:c01::22a]) by dpdk.org (Postfix) with ESMTP id B0530532D for ; Wed, 5 Jun 2013 16:22:04 +0200 (CEST) Received: by mail-ea0-f170.google.com with SMTP id h10so1202377eaj.15 for ; Wed, 05 Jun 2013 07:22:11 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=message-id:date:from:organization:user-agent:mime-version:to :subject:references:in-reply-to:content-type :content-transfer-encoding:x-gm-message-state; bh=xllsl9brrrYZt8ak+tio19RbHHG9tvrloMODNSvMApI=; b=OTnecPdiSlCmUqcHPOhLMppo1u6sLGcST+Ie97ab0Emvew8+/nwhED0heYYmMmyobB 6TBvBcocDCbOYRRz8s/sETlL2MZxsJj8CcmsIPYDc4RYJLHZBSFLBvmIuvk2y7aPvwCF TlK9CE27ED9/MxlYzZeJZopWiM66U26t5sIaTh9rphomeMMYVf0eQmnYCxcbGAitiJ8O RW7eCIStbKSDALWarZXnDW0bQFhehMvnju3ihkT2wme6c6sbj3dW/ZBqmD2s95PYnl3M wnGUxFlQJF6DppDOLRYwCrWCA1usi8RIg5MlnGPs7683AA9DNAZc82VU7LALHT8Yk34f XCcA== X-Received: by 10.14.179.133 with SMTP id h5mr29152030eem.120.1370442131139; Wed, 05 Jun 2013 07:22:11 -0700 (PDT) Received: from saturne.dev.6wind.com (6wind.net2.nerim.net. [213.41.180.237]) by mx.google.com with ESMTPSA id m45sm7645382eeu.17.2013.06.05.07.22.09 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Wed, 05 Jun 2013 07:22:10 -0700 (PDT) Message-ID: <51AF499B.8020903@6wind.com> Date: Wed, 05 Jun 2013 16:22:19 +0200 From: Vincent JARDIN Organization: www.6wind.com User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130311 Thunderbird/17.0.4 MIME-Version: 1.0 To: dev@dpdk.org References: <20130530171234.301927271@vyatta.com> <20130530171626.764056062@vyatta.com> In-Reply-To: <20130530171626.764056062@vyatta.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Gm-Message-State: ALoCoQmnsH5R0UBZa1ySndQweKn8mg53R/Dg04FfbgtKZymXqCJ+qrEqtHGfum20m4QGtlo5KYSt Subject: Re: [dpdk-dev] [PATCH 1/7] [PATCH 4/8] igb: workaround errata with wthresh on 82576 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, 05 Jun 2013 14:22:05 -0000 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.