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=-2.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, 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 D93EBC433E9 for ; Wed, 17 Mar 2021 09:33:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9B3FA64F44 for ; Wed, 17 Mar 2021 09:33:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229683AbhCQJcr (ORCPT ); Wed, 17 Mar 2021 05:32:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46878 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229535AbhCQJcY (ORCPT ); Wed, 17 Mar 2021 05:32:24 -0400 Received: from mail-wr1-x432.google.com (mail-wr1-x432.google.com [IPv6:2a00:1450:4864:20::432]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 01BA6C06174A for ; Wed, 17 Mar 2021 02:32:13 -0700 (PDT) Received: by mail-wr1-x432.google.com with SMTP id 61so1049462wrm.12 for ; Wed, 17 Mar 2021 02:32:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=ckMFHbIAza0oRVDWFt01YA8LQDAieZmNLJNBqCZJrhs=; b=ReRH1LzoQsFbkj5XeL0BikRfqrBJxUxZ7ZfMzq0pmfQJNbCI88nn0qjyjyHWz+FlDH +o2mEMy87p8E+GptXa5pkKxYa+OcE+MT1vzEiArcmcaiFNLltEjV4PXVWfioAorPZskp 5VlFdC3GKgFTyQr5Q6+N3T+X4WBxYxj28sqcHQQq3KkNBhh6a5Tqs2S2ykS7KV5i/7B2 +VALfPsXfPDozi//B8cBhjhSncjqLE9LvV2FDjYRX6stkmr3hegbOOP3DQtl9BN5eSXH Z844XxtOGlFrEUV31jnQuigeN9ETuRfyL/+WC4DKw2XbqxiOMOydLBIIt/s1pTIO/GOt dDdg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=ckMFHbIAza0oRVDWFt01YA8LQDAieZmNLJNBqCZJrhs=; b=GyWMSFdV15zsKRk6XNIJK0sArfNPlxDpiLWZA28+bm8A7IUMTlAhyAvc7rqIL9e1jD XPuTpn2mHh0Rz0XOTAOkjcVsEQmLONGndX/u85MbKRc4dgqaBE0TkwE+TLw4w22axIzS dphQGEr8MadYkcPxqiuVwJecu6wZYoXPqCgeviDSTBcAni07wClgM0XWE/avSJrZNcCu u+WDRIJC/sq2MlUHAHcuZIKdRlqw5sb+Ii/tNVC9w6JL+q+0wpOYQ112xhse2nkg5TvK tPN0hn1y3HNR6PrkhztN3la3Gr/wVkrXmwxKuwcdWTDoi6PaYHt35xlm460/jUoCWsJf VFcg== X-Gm-Message-State: AOAM5322+JCf5ZAYr1mA7PEOxteiJqQ/hvx4aUgh9MoHq4aI/LlH+gQn aUvESBPpn5QMzED2FT9WJ4FEfj5uRrP4HvqJSbjRR/Ze X-Google-Smtp-Source: ABdhPJxOSK+7YazsLKF0GZI9RunQyJekGktJ84bICE4RIs8SHdn1QWin0P8W0AKObSyMIogKK8bucnlug1KnoeHvhIk= X-Received: by 2002:a5d:56d0:: with SMTP id m16mr3312761wrw.355.1615973531697; Wed, 17 Mar 2021 02:32:11 -0700 (PDT) MIME-Version: 1.0 References: <20210316140126.24900-1-joshi.k@samsung.com> In-Reply-To: From: Kanchan Joshi Date: Wed, 17 Mar 2021 15:01:47 +0530 Message-ID: Subject: Re: [RFC PATCH v3 0/3] Async nvme passthrough over io_uring To: Jens Axboe Cc: Kanchan Joshi , Christoph Hellwig , Keith Busch , Chaitanya Kulkarni , io-uring@vger.kernel.org, linux-nvme@lists.infradead.org, anuj20.g@samsung.com, Javier Gonzalez , Nitesh Shetty , Selvakumar S Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org On Tue, Mar 16, 2021 at 9:31 PM Jens Axboe wrote: > > On 3/16/21 8:01 AM, Kanchan Joshi wrote: > > This series adds async passthrough capability for nvme block-dev over > > iouring_cmd. The patches are on top of Jens uring-cmd branch: > > https://git.kernel.dk/cgit/linux-block/log/?h=io_uring-fops.v3 > > > > Application is expected to allocate passthrough command structure, set > > it up traditionally, and pass its address via "block_uring_cmd->addr". > > On completion, CQE is posted with completion-status after any ioctl > > specific buffer/field update. > > Do you have a test app? I'd be curious to try and add support for this > to t/io_uring from fio just to run some perf numbers. Yes Jens. Need to do a couple of things to make it public, will post it today.