From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.9 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1124AC43444 for ; Sat, 15 Dec 2018 03:17:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0997A208C1 for ; Sat, 15 Dec 2018 03:17:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730168AbeLODRe (ORCPT ); Fri, 14 Dec 2018 22:17:34 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:16133 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728115AbeLODRc (ORCPT ); Fri, 14 Dec 2018 22:17:32 -0500 Received: from DGGEMS411-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id ECD0C56D3311B; Sat, 15 Dec 2018 11:17:29 +0800 (CST) Received: from linux-ioko.site (10.71.200.31) by DGGEMS411-HUB.china.huawei.com (10.3.19.211) with Microsoft SMTP Server id 14.3.408.0; Sat, 15 Dec 2018 11:17:23 +0800 From: Peng Li To: CC: , , , , , Subject: [Patch net 05/10] net: hns: Clean rx fbd when ae stopped. Date: Sat, 15 Dec 2018 11:53:24 +0800 Message-ID: <1544846009-50276-6-git-send-email-lipeng321@huawei.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1544846009-50276-1-git-send-email-lipeng321@huawei.com> References: <1544846009-50276-1-git-send-email-lipeng321@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.71.200.31] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Yonglong Liu If there are packets in hardware when changing the speed or duplex, it may cause hardware hang up. This patch adds the code to wait rx fbd clean up when ae stopped. Signed-off-by: Yonglong Liu Signed-off-by: Peng Li --- drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c b/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c index b52029e..ad1779f 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c @@ -379,6 +379,9 @@ static void hns_ae_stop(struct hnae_handle *handle) hns_ae_ring_enable_all(handle, 0); + /* clean rx fbd. */ + hns_rcb_wait_fbd_clean(handle->qs, handle->q_num, RCB_INT_FLAG_RX); + (void)hns_mac_vm_config_bc_en(mac_cb, 0, false); } -- 1.9.1