From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: Checksum offload queries Date: Tue, 08 Dec 2015 12:28:30 -0500 (EST) Message-ID: <20151208.122830.2146242421346445433.davem@davemloft.net> References: <5666FF46.6030702@solarflare.com> <20151208.120911.1930136653560954435.davem@davemloft.net> <56671267.9090607@solarflare.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: tom@herbertland.com, netdev@vger.kernel.org To: ecree@solarflare.com Return-path: Received: from shards.monkeyblade.net ([149.20.54.216]:38485 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751096AbbLHR2c (ORCPT ); Tue, 8 Dec 2015 12:28:32 -0500 In-Reply-To: <56671267.9090607@solarflare.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Edward Cree Date: Tue, 8 Dec 2015 17:24:55 +0000 > The context here was transmit, not receive; the stack muxes > encapsulation layers and then asks the hardware to fill in one > checksum, it doesn't have any way to fill in 'adjusted' checksums in > other layers. The following paragraph (which you snipped) was > discussing ways to get this kind of adjusted checksumming on > transmit, by feeding the adjustments to the hardware. [ Please properly line-wrap your emails, it looks like one very long line to everyone on the list. ] See Tom's reply re: TX.