From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rick Jones Subject: Re: BUG: TCPDUMP invalid cksum persists after disabling TCP cksum offload Date: Tue, 18 Sep 2012 14:54:38 -0700 Message-ID: <5058ED9E.1000902@hp.com> References: <20120918193208.GA19030@darkstar> <1347998905.2685.29.camel@bwh-desktop.uk.solarflarecom.com> <20120918211423.GA19115@darkstar> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Jamie Gloudon , netdev@vger.kernel.org To: Vijay Subramanian Return-path: Received: from g4t0017.houston.hp.com ([15.201.24.20]:43042 "EHLO g4t0017.houston.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755341Ab2IRVyj (ORCPT ); Tue, 18 Sep 2012 17:54:39 -0400 In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: On 09/18/2012 02:46 PM, Vijay Subramanian wrote: >> The results after disabling tcp cksum offload feature: >> # ethtool -K eth1 tx off > > Instead of this, can you try > # ethtool -K eth1 tso off Doesn't TSO depend on TX CKO being enabled? That is, if TX CKO were disabled, shouldn't TSO have been implicitly disabled at the same time? rick jones