From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933301AbcIAVUX (ORCPT ); Thu, 1 Sep 2016 17:20:23 -0400 Received: from szxga03-in.huawei.com ([119.145.14.66]:22449 "EHLO szxga03-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756440AbcIAVTy (ORCPT ); Thu, 1 Sep 2016 17:19:54 -0400 From: Salil Mehta To: CC: , , , , , , , Subject: [PATCH for-next 01/10] IB/hns: Register HNS RoCE Driver get_netdev() with IB Core Date: Fri, 2 Sep 2016 05:37:16 +0800 Message-ID: <1472765845-118972-2-git-send-email-salil.mehta@huawei.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1472765845-118972-1-git-send-email-salil.mehta@huawei.com> References: <1472765845-118972-1-git-send-email-salil.mehta@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.67.212.75] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020206.57C89B78.015A,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: 37d8cd03bb82587edbb9d835334d79f5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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; -- 1.7.9.5