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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 36298C433F5 for ; Fri, 22 Oct 2021 17:40:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1505C61052 for ; Fri, 22 Oct 2021 17:40:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233733AbhJVRmX (ORCPT ); Fri, 22 Oct 2021 13:42:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41410 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233524AbhJVRmX (ORCPT ); Fri, 22 Oct 2021 13:42:23 -0400 Received: from mail-pj1-x102c.google.com (mail-pj1-x102c.google.com [IPv6:2607:f8b0:4864:20::102c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6A18CC061764 for ; Fri, 22 Oct 2021 10:40:05 -0700 (PDT) Received: by mail-pj1-x102c.google.com with SMTP id np13so3450316pjb.4 for ; Fri, 22 Oct 2021 10:40:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=3+M/uV7IF+G3Cwjai4LQ92zUifisbhBwSkDnCPVNXSM=; b=BqDzLyzPa1j3+rhNI4/yVQGKeT1U7/5XPQ6DcQbHaWFvN/Yu3v/hmlBdLI/BJE6kao 9LSgDRCLaB0aKADA5MS7MqeMGoT7mvzxQgQiel/7ng/KfLh1M7BMrsMe4jq5STZ+iDBs csrObP6DVAH0j71mNLRypIQKQyeQgVrulh0QC2OYZkfjvYEuQrBAev/lcuMnD+y2EykG dJmttDGKE3L1C1lTfafOncfvJ8wI699AOCG9iT3b8giMQL69hoQIrSlQ3o0Y+WHnpq9Y DgAb/nvRTCM6AHCtTLnG8ILmO8jCK/re9mDA5pCpKx0923Mhl4ILAd4Jr7qzJGt1h8b2 Co/g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=3+M/uV7IF+G3Cwjai4LQ92zUifisbhBwSkDnCPVNXSM=; b=3tpqXGNNyqlZcD7Pp9RVcow61tW5Bpx6uvFHsGrpGewkFCo/bdZXnwEAjkB9ZVUpsE 1c/3qrBEDialv0ipenXAITeiRYkOuF28LmJi4tY3PiuVUDb8+H32i75vp/fovT59fjQZ ZaKmjv0ND35GV2Xk69icO5j+sfFnkefTk+QU2Y9hkoCkxG+QXvke3/PWkmBSyX6eV+id USRHvZ05vpQIU0YrVprbFOYHEIElos+xomPSpOhAv6icDgzrsW8EpXTIMZ9Y+zVWF/0l wNU9mWbLzN0OnftY/DpcyOb14+XqHE9i1Xu4Zbt7Qjf4eDIhkrr3FNQXMvosQhnhrSGv NTYw== X-Gm-Message-State: AOAM531sz0zt8kqQSQwRLzBuoY8l9QgqNc0O4mUmv4WSQC7PRR2F1aMu 5yY+5pN4pgqrpjYCeyv2HMI= X-Google-Smtp-Source: ABdhPJzKDAqMOn90dNWvx9n0UnoXcOZ2ZgjKUpjp7Na6eaV1iPdmn989bNC4rqDTSKDVtUqLBwJsdQ== X-Received: by 2002:a17:902:7243:b0:13f:505b:5710 with SMTP id c3-20020a170902724300b0013f505b5710mr863250pll.36.1634924404967; Fri, 22 Oct 2021 10:40:04 -0700 (PDT) Received: from [10.67.48.245] ([192.19.223.252]) by smtp.googlemail.com with ESMTPSA id c3sm3497736pji.0.2021.10.22.10.40.03 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 22 Oct 2021 10:40:04 -0700 (PDT) Subject: Re: [PATCH v3 net-next 9/9] selftests: net: dsa: add a stress test for unlocked FDB operations To: Vladimir Oltean , netdev@vger.kernel.org Cc: Andrew Lunn , Vivien Didelot , Vladimir Oltean , UNGLinuxDriver@microchip.com, DENG Qingfang , Kurt Kanzenbach , Hauke Mehrtens , Woojung Huh , Sean Wang , Landen Chao , Alexandre Belloni , George McCollister , John Crispin , Aleksander Jan Bajkowski , Egil Hjelmeland , Oleksij Rempel , Prasanna Vengateshan , Ansuel Smith , =?UTF-8?Q?Alvin_=c5=a0ipraga?= References: <20211022172728.2379321-1-vladimir.oltean@nxp.com> <20211022172728.2379321-10-vladimir.oltean@nxp.com> From: Florian Fainelli Message-ID: Date: Fri, 22 Oct 2021 10:40:02 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: <20211022172728.2379321-10-vladimir.oltean@nxp.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On 10/22/21 10:27 AM, Vladimir Oltean wrote: > This test is a bit strange in that it is perhaps more manual than > others: it does not transmit a clear OK/FAIL verdict, because user space > does not have synchronous feedback from the kernel. If a hardware access > fails, it is in deferred context. > > Nonetheless, on sja1105 I have used it successfully to find and solve a > concurrency issue, so it can be used as a starting point for other > driver maintainers too. > > Signed-off-by: Vladimir Oltean Reviewed-by: Florian Fainelli -- Florian