From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_2 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B9629CA9EAB for ; Sat, 19 Oct 2019 10:26:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 97CF520659 for ; Sat, 19 Oct 2019 10:26:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725965AbfJSK0S (ORCPT ); Sat, 19 Oct 2019 06:26:18 -0400 Received: from gate.crashing.org ([63.228.1.57]:35061 "EHLO gate.crashing.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725883AbfJSK0S (ORCPT ); Sat, 19 Oct 2019 06:26:18 -0400 Received: from localhost (localhost.localdomain [127.0.0.1]) by gate.crashing.org (8.14.1/8.14.1) with ESMTP id x9JAPXS6004953; Sat, 19 Oct 2019 05:25:34 -0500 Message-ID: <72d1a78d7807b1bda00e1bafe0c2ecefe267918b.camel@kernel.crashing.org> Subject: Re: [PATCH v2] ftgmac100: Disable HW checksum generation on AST2500 From: Benjamin Herrenschmidt To: Vijay Khemka , "David S. Miller" , Kate Stewart , Sven Van Asbroeck , Mark Brown , Bhupesh Sharma , YueHaibing , Mauro Carvalho Chehab , Luis Chamberlain , Thomas Gleixner , "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" Cc: "openbmc @ lists . ozlabs . org" , "joel@jms.id.au" , "linux-aspeed@lists.ozlabs.org" , Sai Dasari Date: Sat, 19 Oct 2019 21:25:32 +1100 In-Reply-To: <3D78AA04-A502-4A9F-87A0-0D62D56952AF@fb.com> References: <20191011213027.2110008-1-vijaykhemka@fb.com> <3a1176067b745fddfc625bbd142a41913ee3e3a1.camel@kernel.crashing.org> <0C0BC813-5A84-403F-9C48-9447AAABD867@fb.com> <071cf1eeefcbfc14633a13bc2d15ad7392987a88.camel@kernel.crashing.org> <9AA81274-01F2-4803-8905-26F0521486CE@fb.com> <529EF9B4-DFDE-4DB7-BE26-3AED8D814134@fb.com> <0ef567e985ce3fe821cbd80265f85a35d16be373.camel@kernel.crashing.org> <3D78AA04-A502-4A9F-87A0-0D62D56952AF@fb.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.28.5-0ubuntu0.18.04.1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, 2019-10-19 at 01:31 +0000, Vijay Khemka wrote: > Thanks Ben, > I will try to add some trace and test whatever possible and test it. > As we > don't have tcpdump into our image and I have limited understanding of > networking stack so if you get some time to verify ipv6, it will be > really > helpful. > You only need tcpdump (or wireshark) on the *other end* of the link, could even be your laptop, to look at what the generated frames look like and compare with your traces. Cheers, Ben.