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=-9.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,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 7B610C4360C for ; Fri, 11 Oct 2019 00:24:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 57AE2214E0 for ; Fri, 11 Oct 2019 00:24:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=akamai.com header.i=@akamai.com header.b="XsoccWIM" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727513AbfJKAYn (ORCPT ); Thu, 10 Oct 2019 20:24:43 -0400 Received: from mx0a-00190b01.pphosted.com ([67.231.149.131]:46322 "EHLO mx0a-00190b01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726429AbfJKAYn (ORCPT ); Thu, 10 Oct 2019 20:24:43 -0400 Received: from pps.filterd (m0050093.ppops.net [127.0.0.1]) by m0050093.ppops.net-00190b01. (8.16.0.42/8.16.0.42) with SMTP id x9B0C5a5030543; Fri, 11 Oct 2019 01:24:37 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=akamai.com; h=from : to : cc : subject : date : message-id : in-reply-to : references; s=jan2016.eng; bh=875vaUoHc0xy/rAbcYyATmlW9LlozwumV+FgtA+veYI=; b=XsoccWIMZMiL+PgR97nl/uaxqFhORsfZcdHYnBuEUwsuajuFDpdlvw23gKmZziKDxhgE RY3gtOOPIoKwKBvVYcyQV2d4uYhe0P+cBKtl+yCnL9OyVI9VrFjI+PZP0LqqH87FJLFH JdwzVnWkmWODUeJ10IQcIHGWAaiRg+GBm0fUwHK9AwkQKUWlJydmQutYaVW9w2WHLVy4 gru/KOsJRSiyB6d5rhS2NQnYWAr5quRXsEJvgYRebXb6jRkA/L4bd4Sv/pL9LbYCohNY sLHHA54FzKBxze6k8sIcF8aixknLpXbfr08xo00m+37NZkXvbuU8r5a0/8+Vmq1nK5Ki mw== Received: from prod-mail-ppoint8 (prod-mail-ppoint8.akamai.com [96.6.114.122] (may be forged)) by m0050093.ppops.net-00190b01. with ESMTP id 2vejeqybx4-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 11 Oct 2019 01:24:36 +0100 Received: from pps.filterd (prod-mail-ppoint8.akamai.com [127.0.0.1]) by prod-mail-ppoint8.akamai.com (8.16.0.27/8.16.0.27) with SMTP id x9B0GcYl002041; Thu, 10 Oct 2019 20:24:35 -0400 Received: from prod-mail-relay14.akamai.com ([172.27.17.39]) by prod-mail-ppoint8.akamai.com with ESMTP id 2vepgydkmd-1; Thu, 10 Oct 2019 20:24:35 -0400 Received: from bos-lpwg1 (bos-lpwg1.kendall.corp.akamai.com [172.29.171.203]) by prod-mail-relay14.akamai.com (Postfix) with ESMTP id 6A30481422; Fri, 11 Oct 2019 00:24:35 +0000 (GMT) Received: from johunt by bos-lpwg1 with local (Exim 4.86_2) (envelope-from ) id 1iIijw-0001aw-Jm; Thu, 10 Oct 2019 20:25:04 -0400 From: Josh Hunt To: netdev@vger.kernel.org, intel-wired-lan@lists.osuosl.org, jeffrey.t.kirsher@intel.com Cc: willemb@google.com, sridhar.samudrala@intel.com, aaron.f.brown@intel.com, alexander.h.duyck@linux.intel.com, Josh Hunt , Alexander Duyck Subject: [PATCH v2 2/3] ixgbe: Add UDP segmentation offload support Date: Thu, 10 Oct 2019 20:25:01 -0400 Message-Id: <1570753502-6014-3-git-send-email-johunt@akamai.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1570753502-6014-1-git-send-email-johunt@akamai.com> References: <1570753502-6014-1-git-send-email-johunt@akamai.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-10-10_09:,, signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1908290000 definitions=main-1910110000 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95,1.0.8 definitions=2019-10-10_09:2019-10-10,2019-10-10 signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 impostorscore=0 bulkscore=0 spamscore=0 adultscore=0 phishscore=0 priorityscore=1501 malwarescore=0 clxscore=1015 mlxscore=0 mlxlogscore=999 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1908290000 definitions=main-1910110000 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Repost from a series by Alexander Duyck to add UDP segmentation offload support to the igb driver: https://lore.kernel.org/netdev/20180504003916.4769.66271.stgit@localhost.localdomain/ CC: Alexander Duyck CC: Willem de Bruijn Suggested-by: Alexander Duyck Signed-off-by: Josh Hunt --- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 24 ++++++++++++++++++------ 1 file changed, 18 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 1ce2397306b9..7d50c1a4a3be 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -7946,6 +7946,7 @@ static int ixgbe_tso(struct ixgbe_ring *tx_ring, } ip; union { struct tcphdr *tcp; + struct udphdr *udp; unsigned char *hdr; } l4; u32 paylen, l4_offset; @@ -7969,7 +7970,8 @@ static int ixgbe_tso(struct ixgbe_ring *tx_ring, l4.hdr = skb_checksum_start(skb); /* ADV DTYP TUCMD MKRLOC/ISCSIHEDLEN */ - type_tucmd = IXGBE_ADVTXD_TUCMD_L4T_TCP; + type_tucmd = (!(skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4)) ? + IXGBE_ADVTXD_TUCMD_L4T_TCP : IXGBE_ADVTXD_TUCMD_L4T_UDP; /* initialize outer IP header fields */ if (ip.v4->version == 4) { @@ -7999,12 +8001,20 @@ static int ixgbe_tso(struct ixgbe_ring *tx_ring, /* determine offset of inner transport header */ l4_offset = l4.hdr - skb->data; - /* compute length of segmentation header */ - *hdr_len = (l4.tcp->doff * 4) + l4_offset; - /* remove payload length from inner checksum */ paylen = skb->len - l4_offset; - csum_replace_by_diff(&l4.tcp->check, (__force __wsum)htonl(paylen)); + + if (type_tucmd & IXGBE_ADVTXD_TUCMD_L4T_TCP) { + /* compute length of segmentation header */ + *hdr_len = (l4.tcp->doff * 4) + l4_offset; + csum_replace_by_diff(&l4.tcp->check, + (__force __wsum)htonl(paylen)); + } else { + /* compute length of segmentation header */ + *hdr_len = sizeof(*l4.udp) + l4_offset; + csum_replace_by_diff(&l4.udp->check, + (__force __wsum)htonl(paylen)); + } /* update gso size and bytecount with header size */ first->gso_segs = skb_shinfo(skb)->gso_segs; @@ -10190,6 +10200,7 @@ ixgbe_features_check(struct sk_buff *skb, struct net_device *dev, if (unlikely(mac_hdr_len > IXGBE_MAX_MAC_HDR_LEN)) return features & ~(NETIF_F_HW_CSUM | NETIF_F_SCTP_CRC | + NETIF_F_GSO_UDP_L4 | NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_TSO | NETIF_F_TSO6); @@ -10198,6 +10209,7 @@ ixgbe_features_check(struct sk_buff *skb, struct net_device *dev, if (unlikely(network_hdr_len > IXGBE_MAX_NETWORK_HDR_LEN)) return features & ~(NETIF_F_HW_CSUM | NETIF_F_SCTP_CRC | + NETIF_F_GSO_UDP_L4 | NETIF_F_TSO | NETIF_F_TSO6); @@ -10907,7 +10919,7 @@ static int ixgbe_probe(struct pci_dev *pdev, const struct pci_device_id *ent) IXGBE_GSO_PARTIAL_FEATURES; if (hw->mac.type >= ixgbe_mac_82599EB) - netdev->features |= NETIF_F_SCTP_CRC; + netdev->features |= NETIF_F_SCTP_CRC | NETIF_F_GSO_UDP_L4; #ifdef CONFIG_IXGBE_IPSEC #define IXGBE_ESP_FEATURES (NETIF_F_HW_ESP | \ -- 2.7.4