From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from youngberry.canonical.com (youngberry.canonical.com [91.189.89.112]) by dpdk.org (Postfix) with ESMTP id 9574223D for ; Mon, 30 Jul 2018 18:17:31 +0200 (CEST) Received: from 1.general.paelzer.uk.vpn ([10.172.196.172] helo=lap.fritz.box) by youngberry.canonical.com with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.76) (envelope-from ) id 1fkAqC-00009D-8p; Mon, 30 Jul 2018 16:16:12 +0000 From: Christian Ehrhardt To: Ajit Khaparde Cc: dpdk stable Date: Mon, 30 Jul 2018 18:11:53 +0200 Message-Id: <20180730161342.16566-68-christian.ehrhardt@canonical.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180730161342.16566-1-christian.ehrhardt@canonical.com> References: <20180730161342.16566-1-christian.ehrhardt@canonical.com> Subject: [dpdk-stable] patch 'net/bnxt: fix set MTU' has been queued to stable release 18.05.1 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: , X-List-Received-Date: Mon, 30 Jul 2018 16:17:31 -0000 Hi, FYI, your patch has been queued to stable release 18.05.1 Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet. It will be pushed if I get no objections before 08/01/18. So please shout if anyone has objections. Thanks. Christian Ehrhardt --- >>From fe206006c7c7a72001b5724071c25c05ef832198 Mon Sep 17 00:00:00 2001 From: Ajit Khaparde Date: Thu, 28 Jun 2018 13:15:43 -0700 Subject: [PATCH] net/bnxt: fix set MTU [ upstream commit e80e88a097771ef814611f3592291a527fe1a9cd ] There is no need to update bnxt_hwrm_vnic_plcmode_cfg if new MTU is not greater than the max data the mbuf can accommodate. Fixes: daef48efe5e5 ("net/bnxt: support set MTU") Signed-off-by: Ajit Khaparde --- drivers/net/bnxt/bnxt_ethdev.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c index ee5b86bfe..7cdabb1ec 100644 --- a/drivers/net/bnxt/bnxt_ethdev.c +++ b/drivers/net/bnxt/bnxt_ethdev.c @@ -1566,6 +1566,7 @@ static int bnxt_mtu_set_op(struct rte_eth_dev *eth_dev, uint16_t new_mtu) for (i = 0; i < bp->nr_vnics; i++) { struct bnxt_vnic_info *vnic = &bp->vnic_info[i]; + uint16_t size = 0; vnic->mru = bp->eth_dev->data->mtu + ETHER_HDR_LEN + ETHER_CRC_LEN + VLAN_TAG_SIZE * 2; @@ -1573,9 +1574,14 @@ static int bnxt_mtu_set_op(struct rte_eth_dev *eth_dev, uint16_t new_mtu) if (rc) break; - rc = bnxt_hwrm_vnic_plcmode_cfg(bp, vnic); - if (rc) - return rc; + size = rte_pktmbuf_data_room_size(bp->rx_queues[0]->mb_pool); + size -= RTE_PKTMBUF_HEADROOM; + + if (size < new_mtu) { + rc = bnxt_hwrm_vnic_plcmode_cfg(bp, vnic); + if (rc) + return rc; + } } return rc; -- 2.17.1