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=-2.2 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 8F8D3C2D0CE for ; Tue, 21 Jan 2020 20:55:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5E04721734 for ; Tue, 21 Jan 2020 20:55:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=kernel-dk.20150623.gappssmtp.com header.i=@kernel-dk.20150623.gappssmtp.com header.b="qQuI9AGx" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729043AbgAUUz2 (ORCPT ); Tue, 21 Jan 2020 15:55:28 -0500 Received: from mail-io1-f50.google.com ([209.85.166.50]:40422 "EHLO mail-io1-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728741AbgAUUz1 (ORCPT ); Tue, 21 Jan 2020 15:55:27 -0500 Received: by mail-io1-f50.google.com with SMTP id x1so4311057iop.7 for ; Tue, 21 Jan 2020 12:55:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.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=GR+VQMmvzuZh3DKvR0dUZ1G3VbRW/6DdPWbWLW9ricE=; b=qQuI9AGxngqYrVNaOszXN95qfBHyt8gmEP0MQxQSyLn7IOZcGe8+J+tUu9nVv3lp7L 5VWKy4zlceXkOK7ujViEjNBYGa5SeF9qyd5omtQWMGB95kJ6HM20KBbhjFGzByIl92Ga JAO7iuB/maFSGYPtsqgkDSYo+9Cr7feb/D3UsyMfd0K0uRXn16wvK9928iiFbvRS6YAQ La6rBNKqTR+Y7QjRVpX55dvXxzp5etNnkq0csXLkWrEgUwtlIvUGkUnWVezAi8J0mJe7 hKzxzMZgcAd6U7/Pd6HVpAfEisO9y1yn/ljNOv++v89qvl9HqeYGf02V2ZjM47dVrAim eVBg== 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=GR+VQMmvzuZh3DKvR0dUZ1G3VbRW/6DdPWbWLW9ricE=; b=JeJ7a9+H5Hwyyxb+XS6AT4RbKO99espPkxnbxf49mzfb0V+IoriJWohTdgxpx+tdbv tEBYTFlaiJ2TYrYeJ4efp+d03PFSaG/LxNywc+SJhL1HNzyMn9KeD4iSIIRvil3hl/Bu 0Qx+4FBZNTKBDzH4x4tt3cYwSRNJLVFrzkcJLAOdXMKR03JTtLmUlfhBKtnNOilMLOlz QegKnhUzeD5oydttPjcrYobntgrr23GapgKy5amswa+9fV5uGHojAhHLj52ajsy/wnWs 3IsngvMbJnQXI9DIB1lyqkOSgATDPnoFXb+eCUAIU8AAhFxSQIRGfDxoQGS8YrDD5Z5S eqAg== X-Gm-Message-State: APjAAAXMMs6f3zp2lhuTOwILI+bt7XtfmjzFzv3HE9O4LlaA2hS4TnqX GNNb+hng917KRQdisSSp/5/ly/QRIzQ= X-Google-Smtp-Source: APXvYqy/GOH/WH4heFfLRP6SesbjLM6uWs2TY8ZV8bj2vK6T7L3SralFT9/Ittx/sGtup3oW/CRrBA== X-Received: by 2002:a6b:7117:: with SMTP id q23mr4354194iog.153.1579640126999; Tue, 21 Jan 2020 12:55:26 -0800 (PST) Received: from [192.168.1.159] ([65.144.74.34]) by smtp.gmail.com with ESMTPSA id u10sm13649421ilq.1.2020.01.21.12.55.26 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 21 Jan 2020 12:55:26 -0800 (PST) Subject: Re: Extending the functionality of some SQE OPs To: Mark Papadakis Cc: io-uring References: <8ebf0463-34a2-3416-d7e8-a2be420b1b82@kernel.dk> From: Jens Axboe Message-ID: Date: Tue, 21 Jan 2020 13:55:25 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: io-uring-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org On 1/21/20 1:54 PM, Mark Papadakis wrote: > > > This sounds great. It may wind up being far more useful or important > down the road, and if this doesn’t bloat the CQE, that’s fantastic. It's there if we want to use it. And we cannot bloat the CQE otherwise, the size is fixed. But we can use those 32-bits that are currently not used. -- Jens Axboe