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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0D492C43334 for ; Sun, 19 Jun 2022 01:59:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230299AbiFSB7d (ORCPT ); Sat, 18 Jun 2022 21:59:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48040 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229446AbiFSB7c (ORCPT ); Sat, 18 Jun 2022 21:59:32 -0400 Received: from mail-pj1-x102d.google.com (mail-pj1-x102d.google.com [IPv6:2607:f8b0:4864:20::102d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2517FBCAF for ; Sat, 18 Jun 2022 18:59:31 -0700 (PDT) Received: by mail-pj1-x102d.google.com with SMTP id p3-20020a17090a428300b001ec865eb4a2so2616449pjg.3 for ; Sat, 18 Jun 2022 18:59:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20210112.gappssmtp.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=8Sa+xNwB1Xnx4vib+uEQTPzySliXR7Z1GMwuehk1Itc=; b=pbx5l343Xpq/kyz7ajR/sJTASLwi8F6g/5dwAKlDDTPZnOtJ+UlhDuaPlcoZ0+3Tuo BIZkWRBzT3k2pW7y1zUmGFrdhKJF5EFlVKx+3iiqtP5twmA2Ty1req6OagZtvurxbWNX lJ1VttEIhQMhSjDW5JTwo/2AS6S36QI4VieptlYzGK6kO8FfAen/3Ggw0eLK4paEYkOW T7FUDj6V008myy44b2/+mIbol3okd1mtXnXnZLW6GId+eFOfxJgQUXIU6+3WJMYPzVBW spCVBmzhzEfZPZLI5fllsdZP352tb14xaR3DxJcgF4CBbPN4Ik9C3MLWuN9fFDGXSL4V MwkA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=8Sa+xNwB1Xnx4vib+uEQTPzySliXR7Z1GMwuehk1Itc=; b=OEHNFEc5G0O0GDH+OAY/VLXxtY2GYVOJOg6LGky8meBaYOI8qm+U9E/pIlBy8BCZQN Dr8mtFhAr0ZK2VFaV4yjlR3zzpu0YemMBaQD4IIBOmeMZ1Sn6pFEaMMDOLXPb+5/oFkt 3Ty/Fsh23knvsI9dfGn9ozCOZO+qajhnnRgwGJhiB7kQaPHYGjEuAarmox+aunE5q917 YCq+85zxlx4/UJn+zrcec6cTmVDlYy9L5HQDWmINBGm888q2I8WAIbQBCbRDZBNrVnv0 hxyNKLfpuS0IvM9wrKGGzZOwZYEFRdmBrApf/QqJTSgtb7edTZLO1fXIY6vgNcX5hbRY jX/w== X-Gm-Message-State: AJIora8Hi/qECo7MRHlgwZX/2Nwrae9GgivFYPQZVlqmUtGrdwDttXDG 8ES024kMkAiCP0GCN0olSofVP/5e/pDgag== X-Google-Smtp-Source: AGRyM1ufpbOK/RoI4TQOEmQjKtlow6Nx0Tu3AcGlJydWHw2YixUrKlmdUEcW1vVsEnU0AWbBPM39pA== X-Received: by 2002:a17:902:e750:b0:166:3058:d0ed with SMTP id p16-20020a170902e75000b001663058d0edmr17283140plf.0.1655603970292; Sat, 18 Jun 2022 18:59:30 -0700 (PDT) Received: from localhost.localdomain ([198.8.77.157]) by smtp.gmail.com with ESMTPSA id im15-20020a170902bb0f00b0016194c1df58sm3526725plb.105.2022.06.18.18.59.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 18 Jun 2022 18:59:29 -0700 (PDT) From: Jens Axboe To: io-uring@vger.kernel.org Cc: asml.silence@gmail.com Subject: [PATCHSET v2 for-next 0/2] Add direct descriptor ring passing Date: Sat, 18 Jun 2022 19:59:20 -0600 Message-Id: <20220619015922.1325241-1-axboe@kernel.dk> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org Hi, One of the things we currently cannot do with direct descriptors is pass it to another application or ring. This adds support for doing so, through the IORING_OP_MSG_RING ring-to-ring messaging opcode. Changes since v1: - Add IORING_MSG_RING_CQE_SKIP flag for IORING_OP_MSG_RING - Expand commit message in patch 2 -- Jens Axboe