From patchwork Fri Apr 21 18:57:06 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Devesh Sharma X-Patchwork-Id: 9693533 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 091796038D for ; Fri, 21 Apr 2017 18:57:39 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F0A3F28660 for ; Fri, 21 Apr 2017 18:57:38 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E221F2863D; Fri, 21 Apr 2017 18:57:38 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.3 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI, RCVD_IN_SORBS_SPAM, T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8ABCC2863D for ; Fri, 21 Apr 2017 18:57:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1424298AbdDUS5g (ORCPT ); Fri, 21 Apr 2017 14:57:36 -0400 Received: from mail-wr0-f171.google.com ([209.85.128.171]:36290 "EHLO mail-wr0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1424169AbdDUS5b (ORCPT ); Fri, 21 Apr 2017 14:57:31 -0400 Received: by mail-wr0-f171.google.com with SMTP id c55so59923439wrc.3 for ; Fri, 21 Apr 2017 11:57:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=from:to:subject:date:message-id:in-reply-to:references; bh=PQHMYBpwp2TgSow3OMsyS7vz4AU9+srlwnuY3esFfjk=; b=FUMKJrQ7Fiw8kDlvPVc0T1ZfKTL4pI7TFejKWXzX3VNddWaeuEktgMD9bLD1rEmRdw 7dFyDl42DGrUd3b+J689WyTKoHADuKqfdtGvWTcUHF/4BhTcXVvbhMMCRZUeESlQUOhq lIV1DZaDIMga0eVyEBUiA4NL/K98E1KJ567Xg= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references; bh=PQHMYBpwp2TgSow3OMsyS7vz4AU9+srlwnuY3esFfjk=; b=qmLrVixtKcS0mw0qnuTFGRyui/KJQekZccGZZAg1sFXxM97fph/rCxmggAInGd9ZG3 CsNao4FPWvH/X4xSjDulqLBlKJrVtST/MFdimpUNzByoZeAW/EJEsBfLFdjE8btDceeu b6dMq2ezImHgXCHjQIZtPUfOas2agad/cPw9Q5uv6yVrvZaDZzS7PTs7YEEz+ut1gOgb OuQaXNhJWvdiFYmh6LorCCp8DKO9KCkgsbEu7Unp5g6XGV7I3kOWyaUBYLgUWivwgh16 E6rN3SUGjxlnB2sNajLUiPpe/NNpJ8vZDThFsabRsQXu4yO/oJsQqC1PlD+hKLsPWdRl Yn/g== X-Gm-Message-State: AN3rC/58zNXiUXuhEj2n56zz71aAF7OPhHp14LyvsVO6tBC9dswNsfxH Y58S0NcnE+xQb4XyZSs= X-Received: by 10.223.145.65 with SMTP id j59mr14069216wrj.200.1492801049916; Fri, 21 Apr 2017 11:57:29 -0700 (PDT) Received: from neo00-el73.iig.avagotech.net ([192.19.239.250]) by smtp.gmail.com with ESMTPSA id e12sm12622588wrc.43.2017.04.21.11.57.27 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 21 Apr 2017 11:57:28 -0700 (PDT) From: Devesh Sharma To: linux-rdma@vger.kernel.org Subject: [RESEND rdma-core v4 2/8] libbnxt_re: Add support for user memory regions Date: Fri, 21 Apr 2017 14:57:06 -0400 Message-Id: <1492801032-17587-3-git-send-email-devesh.sharma@broadcom.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1492801032-17587-1-git-send-email-devesh.sharma@broadcom.com> References: <1492801032-17587-1-git-send-email-devesh.sharma@broadcom.com> Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch adds code to allow user applications to register and unregister memory buffers with the HCA. Following functions are now supported: - ibv_reg_mr() - ibv_dereg_mr() Signed-off-by: Sriharsha Basavapatna Signed-off-by: Somnath Kotur Signed-off-by: Selvin Xavier Signed-off-by: Devesh Sharma --- providers/bnxt_re/bnxt_re-abi.h | 4 ++++ providers/bnxt_re/verbs.c | 26 ++++++++++++++++++++++++-- 2 files changed, 28 insertions(+), 2 deletions(-) diff --git a/providers/bnxt_re/bnxt_re-abi.h b/providers/bnxt_re/bnxt_re-abi.h index 05a0888..53645d5 100644 --- a/providers/bnxt_re/bnxt_re-abi.h +++ b/providers/bnxt_re/bnxt_re-abi.h @@ -56,4 +56,8 @@ struct bnxt_re_pd_resp { __u64 dbr; }; +struct bnxt_re_mr_resp { + struct ibv_reg_mr_resp resp; +}; + #endif diff --git a/providers/bnxt_re/verbs.c b/providers/bnxt_re/verbs.c index 3993c61..f67e37d 100644 --- a/providers/bnxt_re/verbs.c +++ b/providers/bnxt_re/verbs.c @@ -131,12 +131,34 @@ int bnxt_re_free_pd(struct ibv_pd *ibvpd) struct ibv_mr *bnxt_re_reg_mr(struct ibv_pd *ibvpd, void *sva, size_t len, int access) { - return NULL; + struct bnxt_re_mr *mr; + struct ibv_reg_mr cmd; + struct bnxt_re_mr_resp resp; + + mr = calloc(1, sizeof(*mr)); + if (!mr) + return NULL; + + if (ibv_cmd_reg_mr(ibvpd, sva, len, (uintptr_t)sva, access, &mr->ibvmr, + &cmd, sizeof(cmd), &resp.resp, sizeof(resp))) { + free(mr); + return NULL; + } + + return &mr->ibvmr; } int bnxt_re_dereg_mr(struct ibv_mr *ibvmr) { - return -ENOSYS; + struct bnxt_re_mr *mr = (struct bnxt_re_mr *)ibvmr; + int status; + + status = ibv_cmd_dereg_mr(ibvmr); + if (status) + return status; + free(mr); + + return 0; } struct ibv_cq *bnxt_re_create_cq(struct ibv_context *ibvctx, int ncqe,