From patchwork Tue Sep 13 19:49:22 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Salil Mehta X-Patchwork-Id: 9329859 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 CC38B607FD for ; Tue, 13 Sep 2016 19:51:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BBE55295FE for ; Tue, 13 Sep 2016 19:51:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B0AEC29602; Tue, 13 Sep 2016 19:51:29 +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 3A948295DA for ; Tue, 13 Sep 2016 19:51:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756526AbcIMTvI (ORCPT ); Tue, 13 Sep 2016 15:51:08 -0400 Received: from szxga03-in.huawei.com ([119.145.14.66]:3831 "EHLO szxga03-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760259AbcIMTvG (ORCPT ); Tue, 13 Sep 2016 15:51:06 -0400 Received: from 172.24.1.137 (EHLO szxeml430-hub.china.huawei.com) ([172.24.1.137]) by szxrg03-dlp.huawei.com (MOS 4.4.3-GA FastPath queued) with ESMTP id CHS66298; Wed, 14 Sep 2016 03:51:02 +0800 (CST) Received: from S00293818-DELL1.china.huawei.com (10.47.141.149) by szxeml430-hub.china.huawei.com (10.82.67.185) with Microsoft SMTP Server id 14.3.235.1; Wed, 14 Sep 2016 03:50:55 +0800 From: Salil Mehta To: CC: , , , , , , , , Subject: [PATCH V2 for-next 1/9] IB/hns: Register HNS RoCE Driver get_netdev() with IB Core Date: Tue, 13 Sep 2016 20:49:22 +0100 Message-ID: <20160913194930.273964-2-salil.mehta@huawei.com> X-Mailer: git-send-email 2.8.3 In-Reply-To: <20160913194930.273964-1-salil.mehta@huawei.com> References: <20160913194930.273964-1-salil.mehta@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.47.141.149] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020203.57D858A6.0266, 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: ed61ff897a3f0e487f872d21676da9f3 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;