From patchwork Thu Dec 12 11:09:28 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leon Romanovsky X-Patchwork-Id: 1208388 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=kernel.org Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="dT/aYXKC"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 47YWKR4j9cz9sPK for ; Thu, 12 Dec 2019 22:09:47 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728972AbfLLLJq (ORCPT ); Thu, 12 Dec 2019 06:09:46 -0500 Received: from mail.kernel.org ([198.145.29.99]:56874 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728613AbfLLLJp (ORCPT ); Thu, 12 Dec 2019 06:09:45 -0500 Received: from localhost (unknown [193.47.165.251]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C226A227BF; Thu, 12 Dec 2019 11:09:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576148985; bh=TzwtMqb4TA5NrCoAHwMIif22JuuxfMAOrgLgDLiN1iA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=dT/aYXKCojly1+IUBxWLdzu2K6Z1UPWypjGPuproAf02otIRVBEFggv3cXD6UWD7k yS2lI+439C3+C1TEx+Nn8NnMhnS4T7W7o0jLCHlHA0JWMcLm/+OFbzlDVdCv8w++NL YiV/3IzBfsoJw0vMiNxA0XaMsVDHYLdfPjnrhp8s= From: Leon Romanovsky To: Doug Ledford , Jason Gunthorpe Cc: Leon Romanovsky , RDMA mailing list , Shahaf Shuler , Yishai Hadas , Saeed Mahameed , linux-netdev Subject: [PATCH rdma-next 5/5] IB/mlx5: Add mmap support for VAR Date: Thu, 12 Dec 2019 13:09:28 +0200 Message-Id: <20191212110928.334995-6-leon@kernel.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191212110928.334995-1-leon@kernel.org> References: <20191212110928.334995-1-leon@kernel.org> MIME-Version: 1.0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Yishai Hadas Add mmap support for VAR, it uses the 'offset' command mode with involvement of IB core APIs to find the previously allocated mmap entry. Signed-off-by: Yishai Hadas Signed-off-by: Leon Romanovsky --- drivers/infiniband/hw/mlx5/main.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index 873480b07686..52bc86ab9490 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -2253,7 +2253,10 @@ static int mlx5_ib_mmap_offset(struct mlx5_ib_dev *dev, mentry = to_mmmap(entry); pfn = (mentry->address >> PAGE_SHIFT); - prot = pgprot_writecombine(vma->vm_page_prot); + if (mentry->mmap_flag == MLX5_IB_MMAP_TYPE_VAR) + prot = pgprot_noncached(vma->vm_page_prot); + else + prot = pgprot_writecombine(vma->vm_page_prot); ret = rdma_user_mmap_io(ucontext, vma, pfn, entry->npages * PAGE_SIZE, prot,