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=-9.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,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 A7741C43387 for ; Wed, 26 Dec 2018 22:37:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6B1AC218E2 for ; Wed, 26 Dec 2018 22:37:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1545863859; bh=/MfFW4nyPsUbHPKy10xzAbUK3QwpGT6nwA3/4+7cahk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=Gn/QkQ4GHZ1lKmV/3Fc5T/Bz8+ZCYtYo67gny7ETlH9snZZDPkwn4or97jEoxbt7J QxZ9egtoxiaLojuXIL8IpVRSe/+qd/ckZrkwAtanksSpHk0VPDqxNVHTbOLuDhkCJN VpqdNDqXcNAJ4IzR1EkSQEBtR/smoarJfTE08tBQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728451AbeLZWhi (ORCPT ); Wed, 26 Dec 2018 17:37:38 -0500 Received: from mail.kernel.org ([198.145.29.99]:37786 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728427AbeLZWhf (ORCPT ); Wed, 26 Dec 2018 17:37:35 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C2F8C20651; Wed, 26 Dec 2018 22:37:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1545863854; bh=/MfFW4nyPsUbHPKy10xzAbUK3QwpGT6nwA3/4+7cahk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ldKbLQLwvsXNULG4e+6cHZaFSoGLuDGR6RIdiOlkqr+j4hHMjzL68zIIyyjInsXue uI7PHw7qf6GWjrLVhBQvrfRrjNS92qPjVfDTZHCSTIeSV5A86Vne/OgJ2RJayVj9WZ NQVb1mBaNkeCRnoql44hUvFCW/bd4Qqo9zQe4nxU= From: Sasha Levin To: stable@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Yonglong Liu , Peng Li , "David S . Miller" , Sasha Levin , netdev@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 58/97] net: hns: Clean rx fbd when ae stopped. Date: Wed, 26 Dec 2018 17:35:18 -0500 Message-Id: <20181226223557.149329-58-sashal@kernel.org> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20181226223557.149329-1-sashal@kernel.org> References: <20181226223557.149329-1-sashal@kernel.org> MIME-Version: 1.0 X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Yonglong Liu [ Upstream commit 31f6b61d810654fb3ef43f4d8afda0f44b142fad ] 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 Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- 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 b52029e26d15..ad1779fc410e 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); } -- 2.19.1