From patchwork Tue Sep 29 09:32:01 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: tanhuazhong X-Patchwork-Id: 1373199 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=huawei.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4C0vPk65tlz9s0b for ; Tue, 29 Sep 2020 19:35:22 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728022AbgI2Jex (ORCPT ); Tue, 29 Sep 2020 05:34:53 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:14772 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727814AbgI2Jew (ORCPT ); Tue, 29 Sep 2020 05:34:52 -0400 Received: from DGGEMS410-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id A15D32C30213399210C3; Tue, 29 Sep 2020 17:34:50 +0800 (CST) Received: from localhost.localdomain (10.69.192.56) by DGGEMS410-HUB.china.huawei.com (10.3.19.210) with Microsoft SMTP Server id 14.3.487.0; Tue, 29 Sep 2020 17:34:44 +0800 From: Huazhong Tan To: CC: , , , , , , Huazhong Tan Subject: [PATCH net-next 3/7] net: hns3: add UDP segmentation offload support Date: Tue, 29 Sep 2020 17:32:01 +0800 Message-ID: <1601371925-49426-4-git-send-email-tanhuazhong@huawei.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1601371925-49426-1-git-send-email-tanhuazhong@huawei.com> References: <1601371925-49426-1-git-send-email-tanhuazhong@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.69.192.56] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Add support for UDP segmentation offload to the HNS3 driver when the device can do it. Signed-off-by: Huazhong Tan --- drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 20 +++++++++++++++++--- 1 file changed, 17 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c index df52abb..a362516 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c @@ -696,12 +696,19 @@ static int hns3_set_tso(struct sk_buff *skb, u32 *paylen, /* normal or tunnel packet */ l4_offset = l4.hdr - skb->data; - hdr_len = (l4.tcp->doff << 2) + l4_offset; /* remove payload length from inner pseudo checksum when tso */ l4_paylen = skb->len - l4_offset; - csum_replace_by_diff(&l4.tcp->check, - (__force __wsum)htonl(l4_paylen)); + + if (skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4) { + hdr_len = sizeof(*l4.udp) + l4_offset; + csum_replace_by_diff(&l4.udp->check, + (__force __wsum)htonl(l4_paylen)); + } else { + hdr_len = (l4.tcp->doff << 2) + l4_offset; + csum_replace_by_diff(&l4.tcp->check, + (__force __wsum)htonl(l4_paylen)); + } /* find the txbd field values */ *paylen = skb->len - hdr_len; @@ -2311,6 +2318,13 @@ static void hns3_set_default_feature(struct net_device *netdev) netdev->features |= NETIF_F_NTUPLE; } } + + if (test_bit(HNAE3_DEV_SUPPORT_UDP_GSO_B, ae_dev->caps)) { + netdev->hw_features |= NETIF_F_GSO_UDP_L4; + netdev->features |= NETIF_F_GSO_UDP_L4; + netdev->vlan_features |= NETIF_F_GSO_UDP_L4; + netdev->hw_enc_features |= NETIF_F_GSO_UDP_L4; + } } static int hns3_alloc_buffer(struct hns3_enet_ring *ring,