From patchwork Fri Jul 17 19:01:05 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jerome Glisse X-Patchwork-Id: 6818851 Return-Path: X-Original-To: patchwork-linux-rdma@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 05A2B9F358 for ; Fri, 17 Jul 2015 19:02:03 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3259D207D3 for ; Fri, 17 Jul 2015 19:02:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 14990207DD for ; Fri, 17 Jul 2015 19:02:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752541AbbGQTBl (ORCPT ); Fri, 17 Jul 2015 15:01:41 -0400 Received: from mx1.redhat.com ([209.132.183.28]:46620 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755448AbbGQTB1 (ORCPT ); Fri, 17 Jul 2015 15:01:27 -0400 Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 5F0602D2F0A; Fri, 17 Jul 2015 19:01:27 +0000 (UTC) Received: from localhost.localdomain.com (vpn-56-84.rdu2.redhat.com [10.10.56.84]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id t6HJ1AjM032515; Fri, 17 Jul 2015 15:01:25 -0400 From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= To: , Cc: Christophe Harle , Duncan Poole , Sherry Cheung , Subhash Gutti , John Hubbard , Mark Hairgrove , Lucien Dunning , Cameron Buschardt , Arvind Gopalakrishnan , Haggai Eran , Shachar Raindel , Liran Liss , =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= Subject: [PATCH 8/8] IB/mlx5/hmm: enable ODP using HMM. Date: Fri, 17 Jul 2015 15:01:05 -0400 Message-Id: <1437159665-6612-9-git-send-email-jglisse@redhat.com> In-Reply-To: <1437159665-6612-1-git-send-email-jglisse@redhat.com> References: <1437159665-6612-1-git-send-email-jglisse@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org X-Spam-Status: No, score=-8.1 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP All pieces are in place for ODP (on demand paging) to work using HMM. Signed-off-by: Jérôme Glisse --- drivers/infiniband/core/uverbs_cmd.c | 4 ---- drivers/infiniband/hw/mlx5/main.c | 5 ++++- 2 files changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index 165c9cd..c5c9bf0 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -3444,9 +3444,6 @@ int ib_uverbs_ex_query_device(struct ib_uverbs_file *file, goto end; #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING -#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING_HMM -#error "CONFIG_INFINIBAND_ON_DEMAND_PAGING_HMM not supported at this stage !" -#else /* CONFIG_INFINIBAND_ON_DEMAND_PAGING_HMM */ resp.odp_caps.general_caps = attr.odp_caps.general_caps; resp.odp_caps.per_transport_caps.rc_odp_caps = attr.odp_caps.per_transport_caps.rc_odp_caps; @@ -3455,7 +3452,6 @@ int ib_uverbs_ex_query_device(struct ib_uverbs_file *file, resp.odp_caps.per_transport_caps.ud_odp_caps = attr.odp_caps.per_transport_caps.ud_odp_caps; resp.odp_caps.reserved = 0; -#endif /* CONFIG_INFINIBAND_ON_DEMAND_PAGING_HMM */ #else /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */ memset(&resp.odp_caps, 0, sizeof(resp.odp_caps)); #endif /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */ diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index b731d06..1ba31d4 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -295,7 +295,10 @@ static int mlx5_ib_query_device(struct ib_device *ibdev, #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING_HMM -#error "CONFIG_INFINIBAND_ON_DEMAND_PAGING_HMM not supported at this stage !" + if (MLX5_CAP_GEN(mdev, pg) && ibdev->hmm_ready) { + props->device_cap_flags |= IB_DEVICE_ON_DEMAND_PAGING; + props->odp_caps = dev->odp_caps; + } #else /* CONFIG_INFINIBAND_ON_DEMAND_PAGING_HMM */ if (MLX5_CAP_GEN(mdev, pg)) props->device_cap_flags |= IB_DEVICE_ON_DEMAND_PAGING;