From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 8F1ECA04DB for ; Wed, 2 Dec 2020 11:12:49 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 57261CA1E; Wed, 2 Dec 2020 11:12:34 +0100 (CET) Received: from mx0b-0016f401.pphosted.com (mx0b-0016f401.pphosted.com [67.231.156.173]) by dpdk.org (Postfix) with ESMTP id B7CBBC9F4; Wed, 2 Dec 2020 11:12:29 +0100 (CET) Received: from pps.filterd (m0045851.ppops.net [127.0.0.1]) by mx0b-0016f401.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 0B2AAKgB024170; Wed, 2 Dec 2020 02:12:28 -0800 Received: from dc5-exch02.marvell.com ([199.233.59.182]) by mx0b-0016f401.pphosted.com with ESMTP id 355w509r4q-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Wed, 02 Dec 2020 02:12:28 -0800 Received: from DC5-EXCH02.marvell.com (10.69.176.39) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 2 Dec 2020 02:12:26 -0800 Received: from pt-lxl0023.marvell.com (10.69.176.80) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Wed, 2 Dec 2020 02:12:24 -0800 From: To: CC: , Liron Himi , , Yuri Chipchev Date: Wed, 2 Dec 2020 12:11:39 +0200 Message-ID: <20201202101212.4717-6-lironh@marvell.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201202101212.4717-1-lironh@marvell.com> References: <20201202101212.4717-1-lironh@marvell.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.312, 18.0.737 definitions=2020-12-02_04:2020-11-30, 2020-12-02 signatures=0 Subject: [dpdk-stable] [PATCH v1 05/38] net/mvpp2: remove CRC len from MRU validation X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org Sender: "stable" From: Liron Himi CRC is being removed by HW before packet get write to the buffer, so CRC len should not be included in MRU validation Fixes: 79ec62028 ("net/mvpp2: update MTU and MRU related calculations") Cc: stable@dpdk.org Signed-off-by: Liron Himi Reviewed-by: Yuri Chipchev --- drivers/net/mvpp2/mrvl_ethdev.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/mvpp2/mrvl_ethdev.c b/drivers/net/mvpp2/mrvl_ethdev.c index 0985ccebe..dbb193496 100644 --- a/drivers/net/mvpp2/mrvl_ethdev.c +++ b/drivers/net/mvpp2/mrvl_ethdev.c @@ -441,8 +441,8 @@ mrvl_mtu_set(struct rte_eth_dev *dev, uint16_t mtu) * when this feature has not been enabled/supported so far * (TODO check scattered_rx flag here once scattered RX is supported). */ - if (mru + MRVL_PKT_OFFS > mbuf_data_size) { - mru = mbuf_data_size - MRVL_PKT_OFFS; + if (mru - RTE_ETHER_CRC_LEN + MRVL_PKT_OFFS > mbuf_data_size) { + mru = mbuf_data_size + RTE_ETHER_CRC_LEN - MRVL_PKT_OFFS; mtu = MRVL_PP2_MRU_TO_MTU(mru); MRVL_LOG(WARNING, "MTU too big, max MTU possible limitted " "by current mbuf size: %u. Set MTU to %u, MRU to %u", -- 2.28.0