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=-3.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 BED8BC2D0A3 for ; Tue, 3 Nov 2020 17:24:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 796F4216C4 for ; Tue, 3 Nov 2020 17:24:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="fmc/uyqF" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728941AbgKCRYu (ORCPT ); Tue, 3 Nov 2020 12:24:50 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46636 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728902AbgKCRYo (ORCPT ); Tue, 3 Nov 2020 12:24:44 -0500 Received: from mail-ej1-x644.google.com (mail-ej1-x644.google.com [IPv6:2a00:1450:4864:20::644]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 54545C0613D1 for ; Tue, 3 Nov 2020 09:24:44 -0800 (PST) Received: by mail-ej1-x644.google.com with SMTP id 7so25387153ejm.0 for ; Tue, 03 Nov 2020 09:24:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=dyXS/pgIDJBIIkfQq9A66S4gnFLSaXr+vsZuoZ3kDv8=; b=fmc/uyqFRb9RB73ZMzagsrY3UN+/vPVhFGN4c5xL5zYocIe+PX3rmOpQV0n1y7P/D9 ISrDjj0bUAoa3O18IsXq62RzeB2bJK4t5FsPvy3rMQ7CppG3LURcJEKfYeC+womS00Jc TZNDI7TWNvID/NFxuz2Gj9MDkW2SdLl3sV4JgypyBi0jOziPESkWzFpF2mjFHnSg0SLE uJxCKJ14JlIYMxaLpjvsr8QH2OvIZYZd9g6oU5LSGOcf5hBo1Mdm19zNq3n+kX+z80qP A8p+24lsPheZHtBezQYe4w4cRBAFIYUHzSQixSoOZvoCm1seKHh1Dc4TF81qnYj04YLA T9xQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=dyXS/pgIDJBIIkfQq9A66S4gnFLSaXr+vsZuoZ3kDv8=; b=CCaufqj1vfG0r8mZbkxryTteDKYmD8UOHNTgsFoJySsnVPquwgbp4EwJ+z7rW3o8GA qaV+uMhAD7betrer16defXES2Cn2qaJy8/dkSRiTs67M9kSIHvUIkU/mRaB1RE+7qUDu aLfchX2SE7YYi9Zsq0aeVGlTZ7yb0tcArSMhj5U31j1peZMxxVL6fN9JCUABpn3E6RbT X9XvBcVFC77kB8x+uf/l3bMdtm32pKc7PYkMdEEAXVK0JQJEp1pSzDa9J/opDYAEa7zH RtZn2d6RrmZZpyvtqI5x7QTPLpLzr0bEw3bkt8vYvmQ50cOfbZ5Kp369GQxWYUaEnq9Z HLdg== X-Gm-Message-State: AOAM531eXv2pJSDIf+G5lk0ZZt+U7QpqxKnidCuH4+nZq48buCxzJ6q1 AEe9/6r4vrLAW5h13YMOoYw= X-Google-Smtp-Source: ABdhPJxEmeWoiZBlko0bG4bbjaq44qAoGCee9J/YkRpwVqZ7/vo84ulrVLTb9dZQyFH48Ntw3EoHgw== X-Received: by 2002:a17:906:7e43:: with SMTP id z3mr22056877ejr.143.1604424283111; Tue, 03 Nov 2020 09:24:43 -0800 (PST) Received: from skbuf ([188.25.2.177]) by smtp.gmail.com with ESMTPSA id k23sm11130927ejo.108.2020.11.03.09.24.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Nov 2020 09:24:42 -0800 (PST) Date: Tue, 3 Nov 2020 19:24:41 +0200 From: Vladimir Oltean To: Jakub Kicinski Cc: Claudiu Manoil , Julian Wiedmann , "netdev@vger.kernel.org" , "David S . Miller" , "james.jurack@ametek.com" Subject: Re: [PATCH net v2 1/2] gianfar: Replace skb_realloc_headroom with skb_cow_head for PTP Message-ID: <20201103172441.2xyyr3dkabtgfeao@skbuf> References: <20201029081057.8506-1-claudiu.manoil@nxp.com> <20201103161319.wisvmjbdqhju6vyh@skbuf> <2b0606ef-71d2-cc85-98db-1e16cc63c9d2@linux.ibm.com> <20201103091226.2d82c90c@kicinski-fedora-PC1C0HJN.hsd1.ca.comcast.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201103091226.2d82c90c@kicinski-fedora-PC1C0HJN.hsd1.ca.comcast.net> Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Tue, Nov 03, 2020 at 09:12:26AM -0800, Jakub Kicinski wrote: > While it is something to be fixed - is anything other than pktgen > making use of IFF_TX_SKB_SHARING? Are you running pktgen, Vladimir? Nope, just iperf3 TCP and PTP. The problem is actually with PTP, I've been testing gianfar with just TCP for a long while.