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(8.16.0.42/8.16.0.42) with SMTP id x9B0C57E001355; Fri, 11 Oct 2019 01:24:36 +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=UwuDjo9NhfggdU4lrFCRMh8ub8Sz7aotcSie1LBSXV0=; b=AXtasmK7P36u08bp+P2XZi4Te+lncez/U08SmPxBFRU1b6SChVYnrE/CZci2B44PC3QY TVM+VB3xgkiN13HGNjsHq55wdSlmkH1tZUp9PddRZRFBdaByDL/0O+QqmYh1iLr9fV2J s8XzS3ogg5Z5SJahD4Ea3cRT0P82wJPH67aSejh9lKFx2W3kyn7Nvu3D5/fWhDDriZLm nfTJVdwOuJecW9xA5kkQ03GdOrlKfpdabJv4Un0JWmyIL/cv4mHmYPUAsdyg3wVW/7/h 8t8C1MUtSvHsXo7jvobilVsyXhABx/Ul/2XVA89sqREggpY+xgmy6hLNukLwGbPSC8se zw== Received: from prod-mail-ppoint4 (prod-mail-ppoint4.akamai.com [96.6.114.87] (may be forged)) by m0050096.ppops.net-00190b01. with ESMTP id 2vekk93u1f-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-ppoint4.akamai.com [127.0.0.1]) by prod-mail-ppoint4.akamai.com (8.16.0.27/8.16.0.27) with SMTP id x9B0Gc97020808; Thu, 10 Oct 2019 20:24:35 -0400 Received: from prod-mail-relay14.akamai.com ([172.27.17.39]) by prod-mail-ppoint4.akamai.com with ESMTP id 2veph46f1c-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 7689781453; 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-0001b1-LZ; 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 3/3] i40e: Add UDP segmentation offload support Date: Thu, 10 Oct 2019 20:25:02 -0400 Message-Id: <1570753502-6014-4-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=947 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 bulkscore=0 clxscore=1015 mlxscore=0 lowpriorityscore=0 adultscore=0 priorityscore=1501 spamscore=0 suspectscore=0 phishscore=0 mlxlogscore=971 impostorscore=0 malwarescore=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 Based on a series from Alexander Duyck this change adds UDP segmentation offload support to the i40e driver. CC: Alexander Duyck CC: Willem de Bruijn Signed-off-by: Josh Hunt --- drivers/net/ethernet/intel/i40e/i40e_main.c | 1 + drivers/net/ethernet/intel/i40e/i40e_txrx.c | 12 +++++++++--- 2 files changed, 10 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 6031223eafab..56f8c52cbba1 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -12911,6 +12911,7 @@ static int i40e_config_netdev(struct i40e_vsi *vsi) NETIF_F_GSO_IPXIP6 | NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_UDP_TUNNEL_CSUM | + NETIF_F_GSO_UDP_L4 | NETIF_F_SCTP_CRC | NETIF_F_RXHASH | NETIF_F_RXCSUM | diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c index e3f29dc8b290..2250284e27fd 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c @@ -2960,10 +2960,16 @@ static int i40e_tso(struct i40e_tx_buffer *first, u8 *hdr_len, /* remove payload length from inner checksum */ paylen = skb->len - l4_offset; - csum_replace_by_diff(&l4.tcp->check, (__force __wsum)htonl(paylen)); - /* compute length of segmentation header */ - *hdr_len = (l4.tcp->doff * 4) + l4_offset; + if (!(skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4)) { + csum_replace_by_diff(&l4.tcp->check, (__force __wsum)htonl(paylen)); + /* compute length of segmentation header */ + *hdr_len = (l4.tcp->doff * 4) + l4_offset; + } else { + csum_replace_by_diff(&l4.udp->check, (__force __wsum)htonl(paylen)); + /* compute length of segmentation header */ + *hdr_len = sizeof(*l4.udp) + l4_offset; + } /* pull values out of skb_shinfo */ gso_size = skb_shinfo(skb)->gso_size; -- 2.7.4