From patchwork Wed Mar 15 10:37:26 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Devesh Sharma X-Patchwork-Id: 9625219 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 C324760424 for ; Wed, 15 Mar 2017 10:38:01 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C6F11285F4 for ; Wed, 15 Mar 2017 10:38:01 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BBD21285FC; Wed, 15 Mar 2017 10:38:01 +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 4BB42285F4 for ; Wed, 15 Mar 2017 10:38:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751773AbdCOKiA (ORCPT ); Wed, 15 Mar 2017 06:38:00 -0400 Received: from mail-wr0-f177.google.com ([209.85.128.177]:35440 "EHLO mail-wr0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751732AbdCOKiA (ORCPT ); Wed, 15 Mar 2017 06:38:00 -0400 Received: by mail-wr0-f177.google.com with SMTP id g10so7968357wrg.2 for ; Wed, 15 Mar 2017 03:37:58 -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=J8dUfme6bSreiPn2NvODDp1gu7nZj3EsckIKuB/KVrU=; b=Y0E2E2EIVV6ticNU4Vdm5mZ6h6OSIfSBBURAYUvBOQz4wgaVqhePaau2R3oE5DaX1R I/Hr+5eDJxW2UiLh7s1gMlSit/P5+OIim0SpnILDcs5fqy3tELbm4SkzLZ9OQNBljq3s XVCJ7R6HMpy9k0fRZBjY3agT4nqU/JMgpUPuw= 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=J8dUfme6bSreiPn2NvODDp1gu7nZj3EsckIKuB/KVrU=; b=k4muzVjkRDClmIBV4uHJKC/hStYlB+df3GDEEugaISW4O9MU8MFx75p6lsVuN1xuB4 2/NlfeitoCq+ERJMZ+RVm9+2hFvih7jsqgmdVRYq99sEwUlM5ANcxhUF2VuceNQLlend cCRrvxQQ80nXev56ogVer1i/GZH1CSF7hRT5CY3TUvQgjjv22wHxcQSHG90kbMSDi0AI HQqycb26Nqrhm84OfZo7G8cxhaZgFhNanh86g3CgjJgehyiwiBzDDizO/kNsUHVUx270 r9S9HJ085vN0ivqfSsYqpGrYcgHX5Q55cqcD8g7I6mpuWRoZvgscrdYWo3mOx3JsEAI9 3XBg== X-Gm-Message-State: AFeK/H2/41hyRngICg5+18hq6D1GpYPDzK1xVUs0USh39b9n8o1Fj19raNtjwVz9ogE310k1 X-Received: by 10.223.136.253 with SMTP id g58mr2619082wrg.10.1489574277935; Wed, 15 Mar 2017 03:37:57 -0700 (PDT) Received: from neo00-el73.iig.avagotech.net ([192.19.239.250]) by smtp.gmail.com with ESMTPSA id 63sm3240365wmg.22.2017.03.15.03.37.55 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 15 Mar 2017 03:37:57 -0700 (PDT) From: Devesh Sharma To: linux-rdma@vger.kernel.org Subject: [rdma-core v3 2/9] libbnxt_re: Add support for user memory regions Date: Wed, 15 Mar 2017 06:37:26 -0400 Message-Id: <1489574253-20300-3-git-send-email-devesh.sharma@broadcom.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1489574253-20300-1-git-send-email-devesh.sharma@broadcom.com> References: <1489574253-20300-1-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 5b3e1cc..89f2be5 100644 --- a/providers/bnxt_re/verbs.c +++ b/providers/bnxt_re/verbs.c @@ -129,12 +129,34 @@ 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,