From patchwork Thu Sep 15 22:48:06 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Salil Mehta X-Patchwork-Id: 9334839 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 E57DE607FD for ; Thu, 15 Sep 2016 22:49:32 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DA69929C60 for ; Thu, 15 Sep 2016 22:49:32 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CF23F29C64; Thu, 15 Sep 2016 22:49:32 +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=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI 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 4028F29C60 for ; Thu, 15 Sep 2016 22:49:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756896AbcIOWt0 (ORCPT ); Thu, 15 Sep 2016 18:49:26 -0400 Received: from szxga03-in.huawei.com ([119.145.14.66]:10006 "EHLO szxga03-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756658AbcIOWtU (ORCPT ); Thu, 15 Sep 2016 18:49:20 -0400 Received: from 172.24.1.47 (EHLO szxeml425-hub.china.huawei.com) ([172.24.1.47]) by szxrg03-dlp.huawei.com (MOS 4.4.3-GA FastPath queued) with ESMTP id CHU79895; Fri, 16 Sep 2016 06:49:15 +0800 (CST) Received: from S00293818-DELL1.china.huawei.com (10.47.129.84) by szxeml425-hub.china.huawei.com (10.82.67.180) with Microsoft SMTP Server id 14.3.235.1; Fri, 16 Sep 2016 06:49:08 +0800 From: Salil Mehta To: CC: , , , , , , , , Subject: [PATCH V3 for-next 1/9] IB/hns: Register HNS RoCE Driver get_netdev() with IB Core Date: Thu, 15 Sep 2016 23:48:06 +0100 Message-ID: <20160915224814.656184-2-salil.mehta@huawei.com> X-Mailer: git-send-email 2.8.3 In-Reply-To: <20160915224814.656184-1-salil.mehta@huawei.com> References: <20160915224814.656184-1-salil.mehta@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.47.129.84] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020204.57DB256C.010C, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2013-05-26 15:14:31, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 80fe23529f2f169e4410a64d3a58eb69 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 From: Lijun Ou This patch adds get_netdev() function to the IB device. This shall be used to fetch netdev corresponding to the port number. This function would be called by IB core(Generic CM Agent) for example, when the RDMA connection is being established. Signed-off-by: Lijun Ou Reviewed-by: Wei Hu Signed-off-by: Salil Mehta --- drivers/infiniband/hw/hns/hns_roce_main.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c index f64f0dd..39e69c3 100644 --- a/drivers/infiniband/hw/hns/hns_roce_main.c +++ b/drivers/infiniband/hw/hns/hns_roce_main.c @@ -372,6 +372,25 @@ static int hns_roce_query_device(struct ib_device *ib_dev, return 0; } +static struct net_device *hns_roce_get_netdev(struct ib_device *ib_dev, + u8 port_num) +{ + struct hns_roce_dev *hr_dev = to_hr_dev(ib_dev); + struct net_device *ndev; + + if (port_num < 1 || port_num > hr_dev->caps.num_ports) + return NULL; + + rcu_read_lock(); + + ndev = hr_dev->iboe.netdevs[port_num - 1]; + if (ndev) + dev_hold(ndev); + + rcu_read_unlock(); + return ndev; +} + static int hns_roce_query_port(struct ib_device *ib_dev, u8 port_num, struct ib_port_attr *props) { @@ -618,6 +637,7 @@ static int hns_roce_register_device(struct hns_roce_dev *hr_dev) ib_dev->query_port = hns_roce_query_port; ib_dev->modify_port = hns_roce_modify_port; ib_dev->get_link_layer = hns_roce_get_link_layer; + ib_dev->get_netdev = hns_roce_get_netdev; ib_dev->query_gid = hns_roce_query_gid; ib_dev->query_pkey = hns_roce_query_pkey; ib_dev->alloc_ucontext = hns_roce_alloc_ucontext;