From patchwork Wed Jan 8 18:05:38 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yishai Hadas X-Patchwork-Id: 11324235 X-Patchwork-Delegate: jgg@ziepe.ca Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A002E921 for ; Wed, 8 Jan 2020 18:06:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 893D52067D for ; Wed, 8 Jan 2020 18:06:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730107AbgAHSGM (ORCPT ); Wed, 8 Jan 2020 13:06:12 -0500 Received: from mail-il-dmz.mellanox.com ([193.47.165.129]:45120 "EHLO mellanox.co.il" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1730096AbgAHSGM (ORCPT ); Wed, 8 Jan 2020 13:06:12 -0500 Received: from Internal Mail-Server by MTLPINE1 (envelope-from yishaih@mellanox.com) with ESMTPS (AES256-SHA encrypted); 8 Jan 2020 20:06:05 +0200 Received: from vnc17.mtl.labs.mlnx (vnc17.mtl.labs.mlnx [10.7.2.17]) by labmailer.mlnx (8.13.8/8.13.8) with ESMTP id 008I65NX030041; Wed, 8 Jan 2020 20:06:05 +0200 Received: from vnc17.mtl.labs.mlnx (vnc17.mtl.labs.mlnx [127.0.0.1]) by vnc17.mtl.labs.mlnx (8.13.8/8.13.8) with ESMTP id 008I65R3022350; Wed, 8 Jan 2020 20:06:05 +0200 Received: (from yishaih@localhost) by vnc17.mtl.labs.mlnx (8.13.8/8.13.8/Submit) id 008I65Hf022349; Wed, 8 Jan 2020 20:06:05 +0200 From: Yishai Hadas To: linux-rdma@vger.kernel.org, jgg@mellanox.com, dledford@redhat.com Cc: saeedm@mellanox.com, yishaih@mellanox.com, maorg@mellanox.com, michaelgur@mellanox.com, netdev@vger.kernel.org Subject: [PATCH rdma-next 08/10] RDMA/uverbs: Add new relaxed ordering memory region access flag Date: Wed, 8 Jan 2020 20:05:38 +0200 Message-Id: <1578506740-22188-9-git-send-email-yishaih@mellanox.com> X-Mailer: git-send-email 1.8.2.3 In-Reply-To: <1578506740-22188-1-git-send-email-yishaih@mellanox.com> References: <1578506740-22188-1-git-send-email-yishaih@mellanox.com> Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org From: Michael Guralnik Adding new relaxed ordering access flag for memory regions. Using memory regions with relaxed ordeing set can enhance performance. 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 --- include/rdma/ib_verbs.h | 1 + include/uapi/rdma/ib_user_ioctl_verbs.h | 1 + 2 files changed, 2 insertions(+) diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index ffb358f..2b3c16f 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -1418,6 +1418,7 @@ enum ib_access_flags { IB_ZERO_BASED = IB_UVERBS_ACCESS_ZERO_BASED, IB_ACCESS_ON_DEMAND = IB_UVERBS_ACCESS_ON_DEMAND, IB_ACCESS_HUGETLB = IB_UVERBS_ACCESS_HUGETLB, + IB_ACCESS_RELAXED_ORDERING = IB_UVERBS_ACCESS_RELAXED_ORDERING, IB_ACCESS_OPTIONAL = IB_UVERBS_ACCESS_OPTIONAL_RANGE, IB_ACCESS_SUPPORTED = diff --git a/include/uapi/rdma/ib_user_ioctl_verbs.h b/include/uapi/rdma/ib_user_ioctl_verbs.h index 76dbbd9..2a165f4 100644 --- a/include/uapi/rdma/ib_user_ioctl_verbs.h +++ b/include/uapi/rdma/ib_user_ioctl_verbs.h @@ -54,6 +54,7 @@ enum ib_uverbs_access_flags { IB_UVERBS_ACCESS_ON_DEMAND = 1 << 6, IB_UVERBS_ACCESS_HUGETLB = 1 << 7, + IB_UVERBS_ACCESS_RELAXED_ORDERING = IB_UVERBS_ACCESS_OPTIONAL_FIRST, IB_UVERBS_ACCESS_OPTIONAL_RANGE = ((IB_UVERBS_ACCESS_OPTIONAL_LAST << 1) - 1) & ~(IB_UVERBS_ACCESS_OPTIONAL_FIRST - 1)