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=-5.2 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable 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 11F59C33CA2 for ; Thu, 9 Jan 2020 09:38:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DC6732072E for ; Thu, 9 Jan 2020 09:38:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=cogentembedded-com.20150623.gappssmtp.com header.i=@cogentembedded-com.20150623.gappssmtp.com header.b="owlLCQXL" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729732AbgAIJiP (ORCPT ); Thu, 9 Jan 2020 04:38:15 -0500 Received: from mail-lj1-f193.google.com ([209.85.208.193]:39971 "EHLO mail-lj1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729726AbgAIJiO (ORCPT ); Thu, 9 Jan 2020 04:38:14 -0500 Received: by mail-lj1-f193.google.com with SMTP id u1so6474695ljk.7 for ; Thu, 09 Jan 2020 01:38:13 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cogentembedded-com.20150623.gappssmtp.com; s=20150623; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=gcQepeyN8a6junsMRn+7ni8VGHABXKHWE7W1EIdhZfs=; b=owlLCQXLOttB/ajmIM/Pc71l01CpbIpJgFMAPVBrOQkVsK91jbtivfmyySrGcn0l5x 5DIXsgLprVyhnkPlyij4lEvW0/ZKkpiktqph26M4EJx2nCUkPv3ATPtbKOgXOng8UdUa CRg2kEyD+wfiljYgu57wLpw3j+f6fuZv1Js+bNa/VclcH7L4LbaFu2s8XypcfrwEVdWl aIZRvQ2fbPM+VJRiT7AZyF4KUwCsLeGI93YiyIVot6/okdT/HyXtJo56De+nsMhW6VWq flTesu2g9ezPk8H/BQYN6MEfTRcnx5zVsC+LFjlMAbFebD3vrXNnDncErGD2XhZMknb1 PjfQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; 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=gcQepeyN8a6junsMRn+7ni8VGHABXKHWE7W1EIdhZfs=; b=j3wnJiJt15na7Drp+Y3fN0mCrc5bM2dNmy7bbxil6sKWoH0G40PtPFJ6I8T3Yg1fpY tXzH6EFi1p+ZcL9KpPBWew10l+31sztAmW4ccM9Pt1oRo4d7CzUIvcBF3+SwkdA89Ixn kmg8NCyZLCu1XI1qSddPOQ8S2pzBEv6KzEHQvZMdbZa3Wv1aC4YZHrcm6XR/jujyoqRT K9+m6lXuVmLclvao9p19xAXG/6K6BnddYmsQZm3blFRiV+jpB/nK1HBbt4xskr07sPfK 1IL0iWYafo+NFKEZ3239IRl5gyFa1IRmwqiqzz4XM2JwKvTS20qfeiahPFsm91UMjY9f SA4w== X-Gm-Message-State: APjAAAXz8+iNSm3OkKyUP/ZgLuWyIKv5tA9fhQ3xb31ENLBRRoI9fMfU +0rlep0ZMl8P73HrR1lcbrtGWQ== X-Google-Smtp-Source: APXvYqxDJMnX64C1vg8pg4K5D3CklsaMkELPgUFRUawQLQol3vZoCWl9QdvyNDGFoZrt79WRuuzBGg== X-Received: by 2002:a2e:88c4:: with SMTP id a4mr5761257ljk.174.1578562692487; Thu, 09 Jan 2020 01:38:12 -0800 (PST) Received: from ?IPv6:2a00:1fa0:42d7:1b7d:a8a2:6efa:9cbd:1aee? ([2a00:1fa0:42d7:1b7d:a8a2:6efa:9cbd:1aee]) by smtp.gmail.com with ESMTPSA id a21sm2779568lfg.44.2020.01.09.01.38.11 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 09 Jan 2020 01:38:11 -0800 (PST) Subject: Re: [PATCH rdma-next 08/10] RDMA/uverbs: Add new relaxed ordering memory region access flag To: Yishai Hadas , linux-rdma@vger.kernel.org, jgg@mellanox.com, dledford@redhat.com Cc: saeedm@mellanox.com, maorg@mellanox.com, michaelgur@mellanox.com, netdev@vger.kernel.org References: <1578506740-22188-1-git-send-email-yishaih@mellanox.com> <1578506740-22188-9-git-send-email-yishaih@mellanox.com> From: Sergei Shtylyov Message-ID: <1a3a3132-67a3-15ba-805f-0eb1c42e78e6@cogentembedded.com> Date: Thu, 9 Jan 2020 12:38:01 +0300 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.3.1 MIME-Version: 1.0 In-Reply-To: <1578506740-22188-9-git-send-email-yishaih@mellanox.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org On 08.01.2020 21:05, Yishai Hadas wrote: > From: Michael Guralnik > > Adding new relaxed ordering access flag for memory regions. > Using memory regions with relaxed ordeing set can enhance performance. Ordering. :-) > This access flag is handled in a best-effort manner, drivers should > ignore if they don't support setting relaxed ordering. > > Signed-off-by: Michael Guralnik > Signed-off-by: Yishai Hadas [...] MBR, Sergei