From patchwork Tue Feb 4 08:24:07 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Weihang Li X-Patchwork-Id: 11364171 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 73CF513A4 for ; Tue, 4 Feb 2020 08:24:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5B09F21744 for ; Tue, 4 Feb 2020 08:24:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727192AbgBDIYq (ORCPT ); Tue, 4 Feb 2020 03:24:46 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:9689 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727180AbgBDIYq (ORCPT ); Tue, 4 Feb 2020 03:24:46 -0500 Received: from DGGEMS412-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id A8308ACBC8048A1EA7A0; Tue, 4 Feb 2020 16:24:44 +0800 (CST) Received: from SZA160416817.china.huawei.com (10.46.14.205) by DGGEMS412-HUB.china.huawei.com (10.3.19.212) with Microsoft SMTP Server id 14.3.439.0; Tue, 4 Feb 2020 16:24:35 +0800 From: Weihang Li To: , CC: , , Subject: [PATCH RFC v2 for-next 6/7] RDMA/core: support send port event Date: Tue, 4 Feb 2020 16:24:07 +0800 Message-ID: <20200204082408.18728-7-liweihang@huawei.com> X-Mailer: git-send-email 2.10.0.windows.1 In-Reply-To: <20200204082408.18728-1-liweihang@huawei.com> References: <20200204082408.18728-1-liweihang@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.46.14.205] X-CFilter-Loop: Reflected Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org From: Lang Cheng For the process of handling the link event of the net device, the driver of each provider is similar, so it can be integrated into the ib_core for unified processing. Signed-off-by: Lang Cheng --- drivers/infiniband/core/device.c | 1 + drivers/infiniband/core/roce_gid_mgmt.c | 45 +++++++++++++++++++++++++++++++++ 2 files changed, 46 insertions(+) diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c index 84dd74f..0427a4d 100644 --- a/drivers/infiniband/core/device.c +++ b/drivers/infiniband/core/device.c @@ -2225,6 +2225,7 @@ struct net_device *ib_device_get_netdev(struct ib_device *ib_dev, return res; } +EXPORT_SYMBOL(ib_device_get_netdev); /** * ib_device_get_by_netdev - Find an IB device associated with a netdev diff --git a/drivers/infiniband/core/roce_gid_mgmt.c b/drivers/infiniband/core/roce_gid_mgmt.c index 2860def..4170ba3 100644 --- a/drivers/infiniband/core/roce_gid_mgmt.c +++ b/drivers/infiniband/core/roce_gid_mgmt.c @@ -751,6 +751,12 @@ static int netdevice_event(struct notifier_block *this, unsigned long event, struct net_device *ndev = netdev_notifier_info_to_dev(ptr); struct netdev_event_work_cmd cmds[ROCE_NETDEV_CALLBACK_SZ] = { {NULL} }; + enum ib_port_state last_state; + enum ib_port_state curr_state; + struct ib_device *device; + struct ib_event ibev; + unsigned int port; + if (ndev->type != ARPHRD_ETHER) return NOTIFY_DONE; @@ -762,6 +768,45 @@ static int netdevice_event(struct notifier_block *this, unsigned long event, cmds[2] = add_cmd; break; + case NETDEV_CHANGE: + case NETDEV_DOWN: + device = ib_device_get_by_netdev(ndev, RDMA_DRIVER_UNKNOWN); + if (!device) + break; + + rdma_for_each_port (device, port) { + if (ib_device_get_netdev(device, port) != ndev) + continue; + + if (ib_get_cached_port_inactive_status(device, port)) + break; + + ib_get_cached_port_state(device, port, &last_state); + curr_state = + netif_running(ndev) && netif_carrier_ok(ndev) ? + IB_PORT_ACTIVE : + IB_PORT_DOWN; + + if (last_state == curr_state) + break; + + if (curr_state == IB_PORT_DOWN) + ibev.event = IB_EVENT_PORT_ERR; + else if (curr_state == IB_PORT_ACTIVE) + ibev.event = IB_EVENT_PORT_ACTIVE; + else + break; + + ibev.device = device; + ibev.element.port_num = port; + ib_dispatch_event(&ibev); + ibdev_dbg(ibev.device, "core send %s\n", + ib_event_msg(ibev.event)); + } + + ib_device_put(device); + break; + case NETDEV_UNREGISTER: if (ndev->reg_state < NETREG_UNREGISTERED) cmds[0] = del_cmd;