From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id B1E18A0547; Wed, 31 Mar 2021 09:00:56 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id A8EAE140DE6; Wed, 31 Mar 2021 09:00:51 +0200 (CEST) Received: from szxga05-in.huawei.com (szxga05-in.huawei.com [45.249.212.191]) by mails.dpdk.org (Postfix) with ESMTP id B7AD74069E for ; Wed, 31 Mar 2021 09:00:48 +0200 (CEST) Received: from DGGEMS401-HUB.china.huawei.com (unknown [172.30.72.59]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4F9HGT4nQVzyNFN for ; Wed, 31 Mar 2021 14:58:41 +0800 (CST) Received: from localhost.localdomain (10.69.192.56) by DGGEMS401-HUB.china.huawei.com (10.3.19.201) with Microsoft SMTP Server id 14.3.498.0; Wed, 31 Mar 2021 15:00:44 +0800 From: "Min Hu (Connor)" To: CC: Date: Wed, 31 Mar 2021 15:01:09 +0800 Message-ID: <1617174070-41102-2-git-send-email-humin29@huawei.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1617174070-41102-1-git-send-email-humin29@huawei.com> References: <1616748961-11239-1-git-send-email-humin29@huawei.com> <1617174070-41102-1-git-send-email-humin29@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.69.192.56] X-CFilter-Loop: Reflected Subject: [dpdk-dev] [PATCH v2 1/2] net/hns3: fix code check warning X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" This patch fixed cyclomatic complexity about MTU in device configure process. Fixes: 1f5ca0b460cd ("net/hns3: support some device operations") Cc: stable@dpdk.org Signed-off-by: Min Hu (Connor) --- drivers/net/hns3/hns3_ethdev.c | 61 +++++++++++++++++++++++++----------------- 1 file changed, 37 insertions(+), 24 deletions(-) diff --git a/drivers/net/hns3/hns3_ethdev.c b/drivers/net/hns3/hns3_ethdev.c index 4883cb7..5cc997d 100644 --- a/drivers/net/hns3/hns3_ethdev.c +++ b/drivers/net/hns3/hns3_ethdev.c @@ -2373,6 +2373,40 @@ hns3_init_ring_with_vector(struct hns3_hw *hw) } static int +hns3_refresh_mtu(struct rte_eth_dev *dev, struct rte_eth_conf *conf) +{ + struct hns3_adapter *hns = dev->data->dev_private; + struct hns3_hw *hw = &hns->hw; + uint32_t max_rx_pkt_len; + uint16_t mtu; + int ret; + + if (!(conf->rxmode.offloads & DEV_RX_OFFLOAD_JUMBO_FRAME)) + return 0; + + /* + * If jumbo frames are enabled, MTU needs to be refreshed + * according to the maximum RX packet length. + */ + max_rx_pkt_len = conf->rxmode.max_rx_pkt_len; + if (max_rx_pkt_len > HNS3_MAX_FRAME_LEN || + max_rx_pkt_len <= HNS3_DEFAULT_FRAME_LEN) { + hns3_err(hw, "maximum Rx packet length must be greater than %u " + "and no more than %u when jumbo frame enabled.", + (uint16_t)HNS3_DEFAULT_FRAME_LEN, + (uint16_t)HNS3_MAX_FRAME_LEN); + return -EINVAL; + } + + mtu = (uint16_t)HNS3_PKTLEN_TO_MTU(max_rx_pkt_len); + ret = hns3_dev_mtu_set(dev, mtu); + if (ret) + return ret; + dev->data->mtu = mtu; + + return 0; +} +static int hns3_dev_configure(struct rte_eth_dev *dev) { struct hns3_adapter *hns = dev->data->dev_private; @@ -2382,8 +2416,6 @@ hns3_dev_configure(struct rte_eth_dev *dev) uint16_t nb_rx_q = dev->data->nb_rx_queues; uint16_t nb_tx_q = dev->data->nb_tx_queues; struct rte_eth_rss_conf rss_conf; - uint32_t max_rx_pkt_len; - uint16_t mtu; bool gro_en; int ret; @@ -2431,28 +2463,9 @@ hns3_dev_configure(struct rte_eth_dev *dev) goto cfg_err; } - /* - * If jumbo frames are enabled, MTU needs to be refreshed - * according to the maximum RX packet length. - */ - if (conf->rxmode.offloads & DEV_RX_OFFLOAD_JUMBO_FRAME) { - max_rx_pkt_len = conf->rxmode.max_rx_pkt_len; - if (max_rx_pkt_len > HNS3_MAX_FRAME_LEN || - max_rx_pkt_len <= HNS3_DEFAULT_FRAME_LEN) { - hns3_err(hw, "maximum Rx packet length must be greater " - "than %u and less than %u when jumbo frame enabled.", - (uint16_t)HNS3_DEFAULT_FRAME_LEN, - (uint16_t)HNS3_MAX_FRAME_LEN); - ret = -EINVAL; - goto cfg_err; - } - - mtu = (uint16_t)HNS3_PKTLEN_TO_MTU(max_rx_pkt_len); - ret = hns3_dev_mtu_set(dev, mtu); - if (ret) - goto cfg_err; - dev->data->mtu = mtu; - } + ret = hns3_refresh_mtu(dev, conf); + if (ret) + goto cfg_err; ret = hns3_dev_configure_vlan(dev); if (ret) -- 2.7.4