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 7D4C4C19759 for ; Fri, 2 Aug 2019 02:56:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4331620840 for ; Fri, 2 Aug 2019 02:56:44 +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="hsdn6aqq" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729598AbfHBC4e (ORCPT ); Thu, 1 Aug 2019 22:56:34 -0400 Received: from mail-qk1-f193.google.com ([209.85.222.193]:38910 "EHLO mail-qk1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728045AbfHBC4e (ORCPT ); Thu, 1 Aug 2019 22:56:34 -0400 Received: by mail-qk1-f193.google.com with SMTP id a27so53755185qkk.5 for ; Thu, 01 Aug 2019 19:56:33 -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=AGcsiVskghKXKTPwmk4P4JA0sIIcQz2X4jy5Em4AmC8=; b=hsdn6aqqkOnymE2HgFmv9WV2k1diZ5VIWvhfEVFicAI+f5QcIe8ovHPyufx8cXq2AU oJOoC+rANwmmnA2yAN+lICss4ugdRztzzv7fhukfFVtMb5AactqVbujYzoKSBZeqVxte pkBoMBj9TuCo7siwxi2DlaT62jiRDW8FOkdJlAYDwueRkwUX9yBlakwuMB6v+Stan0LK XC7iZKbaTN+RiLjmviwi3v01RdVYvMHQVLusBF2MW8VVM1cIZj2/8o4NUeSM8PGpVmGt L4kyOH2tkf2/ubdf5XY5h9cigQBP4rnBL0e0APIpPo8juxcAUijO6l1sgoVM/mXZ/knT XRAA== 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=AGcsiVskghKXKTPwmk4P4JA0sIIcQz2X4jy5Em4AmC8=; b=BNYs6D9YmP82+8QG69CTTBgiLxL1DNMOFDMmvMdmQIzlln4XBGivuT7A7UnKOjZiwr Hx8kYTzQs5cXNolbGijfek1tV/rqWhvB+/tNEm749c0WK1xRo00KJFO77ls43HSDMokj p3UhiBhvYqtPbsCt2GPXBXTvxFH+vdOBzeohdkqFVmdHoitBEUWn6bOV9RG/cWgC6r2R wdaoG93EmDoaZxmvRs/F2iHYPwk4RlxORWfZcQm6EzvgL59hPoaXbaaRBG9Ttz+yuKt2 4+hhZ5v8WbZFdngI9xES/lPMMxP43WZ15wdJP0oqy53MvVI3OSAfrpLSgukKVjUQZ/PD D+7w== X-Gm-Message-State: APjAAAWzABb8zee4/TCMgs53QsGlIQTzKm/oCKzqygBidOkFru0CH5Ec Ex8BJi/KFZbvzWnf7x4IJG5yxg== X-Google-Smtp-Source: APXvYqyYZi4yt1e1ehHUYDiKwdTUpM0xPNEVpILsB7fjpu4rSy2YTQxg25vtKeU2tM7Zn6waReWrSg== X-Received: by 2002:ae9:f801:: with SMTP id x1mr79486878qkh.242.1564714593159; Thu, 01 Aug 2019 19:56:33 -0700 (PDT) Received: from cakuba.netronome.com ([66.60.152.14]) by smtp.gmail.com with ESMTPSA id e125sm30096769qkd.120.2019.08.01.19.56.32 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Thu, 01 Aug 2019 19:56:33 -0700 (PDT) Date: Thu, 1 Aug 2019 19:56:14 -0700 From: Jakub Kicinski To: wenxu Cc: jiri@resnulli.us, pablo@netfilter.org, fw@strlen.de, netfilter-devel@vger.kernel.org, netdev@vger.kernel.org, John Hurley Subject: Re: [PATCH net-next v5 5/6] flow_offload: support get flow_block immediately Message-ID: <20190801195614.0742c12b@cakuba.netronome.com> In-Reply-To: <43995d3c-dff5-3000-317c-09b119c61565@ucloud.cn> References: <1564628627-10021-1-git-send-email-wenxu@ucloud.cn> <1564628627-10021-6-git-send-email-wenxu@ucloud.cn> <20190801161129.25fee619@cakuba.netronome.com> <43995d3c-dff5-3000-317c-09b119c61565@ucloud.cn> 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, 2 Aug 2019 10:47:26 +0800, wenxu wrote: > > After all the same device may have both a TC block and a NFT block. > > Only one subsystem can be used for the same device for both indr-dev and hw-dev > the flow_block_cb_is_busy avoid the situation you mentioned. AFAIU that's a temporary limitation until drivers learn to manage multiple tables.