From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wi0-f175.google.com (mail-wi0-f175.google.com [209.85.212.175]) by kanga.kvack.org (Postfix) with ESMTP id 084096B01F5 for ; Thu, 21 May 2015 16:24:48 -0400 (EDT) Received: by wicmx19 with SMTP id mx19so27099614wic.0 for ; Thu, 21 May 2015 13:24:47 -0700 (PDT) Received: from mx1.redhat.com (mx1.redhat.com. [209.132.183.28]) by mx.google.com with ESMTPS id x15si3392933wia.58.2015.05.21.13.24.45 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 21 May 2015 13:24:46 -0700 (PDT) From: jglisse@redhat.com Subject: [PATCH 36/36] IB/mlx5/hmm: enable ODP using HMM. Date: Thu, 21 May 2015 16:23:12 -0400 Message-Id: <1432239792-5002-17-git-send-email-jglisse@redhat.com> In-Reply-To: <1432239792-5002-1-git-send-email-jglisse@redhat.com> References: <1432236705-4209-1-git-send-email-j.glisse@gmail.com> <1432239792-5002-1-git-send-email-jglisse@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: owner-linux-mm@kvack.org List-ID: To: akpm@linux-foundation.org Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, Linus Torvalds , joro@8bytes.org, Mel Gorman , "H. Peter Anvin" , Peter Zijlstra , Andrea Arcangeli , Johannes Weiner , Larry Woodman , Rik van Riel , Dave Airlie , Brendan Conoboy , Joe Donohue , Duncan Poole , Sherry Cheung , Subhash Gutti , John Hubbard , Mark Hairgrove , Lucien Dunning , Cameron Buschardt , Arvind Gopalakrishnan , Haggai Eran , Shachar Raindel , Liran Liss , Roland Dreier , Ben Sander , Greg Stoner , John Bridgman , Michael Mantor , Paul Blinzer , Laurent Morichetti , Alexander Deucher , Oded Gabbay , =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= , linux-rdma@vger.kernel.org From: JA(C)rA'me Glisse All pieces are in place for ODP (on demand paging) to work using HMM. Signed-off-by: JA(C)rA'me Glisse cc: --- drivers/infiniband/core/uverbs_cmd.c | 4 ---- drivers/infiniband/hw/mlx5/main.c | 6 +++++- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index 3225ab5..16520bd 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -3340,9 +3340,6 @@ 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; @@ -3351,7 +3348,6 @@ 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 eddabf0..cff70a2 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -157,7 +157,11 @@ 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 ((dev->mdev->caps.gen.flags & MLX5_DEV_CAP_FLAG_ON_DMND_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 (dev->mdev->caps.gen.flags & MLX5_DEV_CAP_FLAG_ON_DMND_PG) props->device_cap_flags |= IB_DEVICE_ON_DEMAND_PAGING; -- 1.9.3 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org