From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 27228 invoked by alias); 7 Jun 2011 20:32:21 -0000 Received: (qmail 27212 invoked by uid 22791); 7 Jun 2011 20:32:21 -0000 X-SWARE-Spam-Status: No, hits=-1.5 required=5.0 tests=AWL,BAYES_00 X-Spam-Check-By: sourceware.org Received: from tirion.supremecenter202.com (HELO tirion.supremecenter202.com) (209.25.195.243) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Tue, 07 Jun 2011 20:32:05 +0000 Received: from c-fe5ae055.46-4-64736c11.cust.bredbandsbolaget.se ([85.224.90.254]:64389 helo=[192.168.0.137]) by tirion.supremecenter202.com with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.69) (envelope-from ) id 1QU2wX-0000sX-BF for ecos-discuss@ecos.sourceware.org; Tue, 07 Jun 2011 20:32:05 +0000 Message-ID: <4DEE8AC1.5030106@siva.com.mk> Date: Tue, 07 Jun 2011 20:32:00 -0000 From: Ilija Kocho User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.17) Gecko/20110424 Lightning/1.0b2 Thunderbird/3.1.10 ThunderBrowse/3.3.5 MIME-Version: 1.0 To: ecos-discuss@ecos.sourceware.org References: <1478E21E-D36A-4451-9F69-0042CBF57E91@netic.com> <4DEDE781.5040108@siva.com.mk> <4DEE55DF.9010700@siva.com.mk> <4DEE8083.9030005@dallaway.org.uk> <34195.33997444$1307477887@news.gmane.org> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Mailing-List: contact ecos-discuss-help@ecos.sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: ecos-discuss-owner@ecos.sourceware.org Subject: Re: [ECOS] Re: How to use IP/UDP/TCP checksum offload HW? X-SW-Source: 2011-06/txt/msg00041.txt.bz2 On 07.06.2011 22:28, Grant Edwards wrote: > On 2011-06-07, Laurie Gellatly wrote: > >> Hi Simon, Are you doing anything about enabling hardware CRC in the >> new port that we should align to? > Just to clarify, we're talking about the IP 1's compliment checksum, > not the Ethernet CRC, right? Sure. And optionally some other IP (layer 3) processing. > AFAIK, the network stacks all assume the CRC is done in hardware -- or > at least by the driver code. [Yes, I've used controllers where you had > to do the CRC in software.] > -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss