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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, 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 17E76C3A59F for ; Fri, 30 Aug 2019 01:21:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D97B021874 for ; Fri, 30 Aug 2019 01:21:57 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=netronome-com.20150623.gappssmtp.com header.i=@netronome-com.20150623.gappssmtp.com header.b="rvc3lRop" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727398AbfH3BV5 (ORCPT ); Thu, 29 Aug 2019 21:21:57 -0400 Received: from mail-pl1-f193.google.com ([209.85.214.193]:32788 "EHLO mail-pl1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727348AbfH3BV4 (ORCPT ); Thu, 29 Aug 2019 21:21:56 -0400 Received: by mail-pl1-f193.google.com with SMTP id go14so2494453plb.0 for ; Thu, 29 Aug 2019 18:21:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=netronome-com.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:in-reply-to:references :organization:mime-version:content-transfer-encoding; bh=YXCp75rK0Qyzg6kzVVR4V73a9w8Z/QXHdXxxNx64vEo=; b=rvc3lRopbzeZHypKdYN1M+T0Pcuy6a4PFH4SvHLbHhj/7rJTGYEJBPz7vRwBi1/8Pg Zfyrafh26MEWhPnUsAHjij5jr1SjReJU//avswQF6KvRozjnK1raZ3AkzjT1SpISs0Ov 9Nf+Xs5wDE4brTzzKeWX5DkgJDrsbX3X4xuTe6RquovaWoic/xeCMAqSD1c33RgnLnom L/Wm7PZHVLZ+9vcFhnmCbeYIrmk27pcfLgs0vqM0kaUgZSE44hpTZm1HugedHuSZRKgX 8H51GnTGS/1EutzivPW4vmHja51uEevvO1wkez6K64po7NZaNk+ShepqaBjEO3HeJLww IVAQ== 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:in-reply-to :references:organization:mime-version:content-transfer-encoding; bh=YXCp75rK0Qyzg6kzVVR4V73a9w8Z/QXHdXxxNx64vEo=; b=IZync40yjDbcNXpoPHnfYKJLz6Apa+C+bNkorqn7tz4Ynv9iEi4kx2/FIxsBsppJY6 0BGD4ixzlxVmpKiuU+/PJT8WJ31rhwOYcwekGaS1N4e7iJQDLbwV7WCMXNW8M0FpCAIq yBmx/xBhevyonkKC1P0P1IkMJ68pkus6MiFgwMyi/wts4mFGarbaIrS9YCDV5AwYErxK P895ZpKzPxhxSkGDW4Ay/vmWmM0xVN/eyBTMCB+VLVrFGgJysD+eJG3tzHziyk31DDhf GqDXLLMk9+mop6cRS5LZSAINKsFqWyulMdPiFpxxJKTY1yReT5EBfKx5vVdEyHQ66zBd jTmA== X-Gm-Message-State: APjAAAXN39cSxIZuzpmS2kUFOmvOcNkwP3dDuL/6gYm6EBdR+HLq4n2k wQ+nzuSxw1XTV9CJgFA9b/J8/w== X-Google-Smtp-Source: APXvYqwaOa+AYRU5A+BPF8iRPkKBVnlS6pkonbmG/CKHwB+mDQdKTwDnK3V0NbgdR59hqLA9RKq1Wg== X-Received: by 2002:a17:902:e493:: with SMTP id cj19mr12871862plb.292.1567128116053; Thu, 29 Aug 2019 18:21:56 -0700 (PDT) Received: from cakuba.netronome.com (c-71-204-185-212.hsd1.ca.comcast.net. [71.204.185.212]) by smtp.gmail.com with ESMTPSA id y16sm4704826pfc.36.2019.08.29.18.21.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 29 Aug 2019 18:21:55 -0700 (PDT) Date: Thu, 29 Aug 2019 18:21:32 -0700 From: Jakub Kicinski To: Vladimir Oltean Cc: f.fainelli@gmail.com, vivien.didelot@gmail.com, andrew@lunn.ch, davem@davemloft.net, vinicius.gomes@intel.com, vedang.patel@intel.com, richardcochran@gmail.com, weifeng.voon@intel.com, jiri@mellanox.com, m-karicheri2@ti.com, Jose.Abreu@synopsys.com, ilias.apalodimas@linaro.org, jhs@mojatatu.com, xiyou.wangcong@gmail.com, netdev@vger.kernel.org Subject: Re: [RFC PATCH v2 net-next 00/15] tc-taprio offload for SJA1105 DSA Message-ID: <20190829182132.43001706@cakuba.netronome.com> In-Reply-To: <20190830004635.24863-1-olteanv@gmail.com> References: <20190830004635.24863-1-olteanv@gmail.com> Organization: Netronome Systems, Ltd. MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Fri, 30 Aug 2019 03:46:20 +0300, Vladimir Oltean wrote: > - Configuring the switch over SPI cannot apparently be done from this > ndo_setup_tc callback because it runs in atomic context. I also have > some downstream patches to offload tc clsact matchall with mirred > action, but in that case it looks like the atomic context restriction > does not apply. This sounds really surprising ndo_setup_tc should always be allowed to sleep. Can the taprio limitation be lifted somehow?