From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id E15A72B8C for ; Sat, 23 Apr 2016 13:26:40 +0200 (CEST) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga101.fm.intel.com with ESMTP; 23 Apr 2016 04:26:17 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.24,522,1455004800"; d="scan'208";a="961179639" Received: from shvmail01.sh.intel.com ([10.239.29.42]) by orsmga002.jf.intel.com with ESMTP; 23 Apr 2016 04:26:16 -0700 Received: from shecgisg003.sh.intel.com (shecgisg003.sh.intel.com [10.239.29.90]) by shvmail01.sh.intel.com with ESMTP id u3NBQECj006790; Sat, 23 Apr 2016 19:26:14 +0800 Received: from shecgisg003.sh.intel.com (localhost [127.0.0.1]) by shecgisg003.sh.intel.com (8.13.6/8.13.6/SuSE Linux 0.8) with ESMTP id u3NBQCil016976; Sat, 23 Apr 2016 19:26:14 +0800 Received: (from beileixi@localhost) by shecgisg003.sh.intel.com (8.13.6/8.13.6/Submit) id u3NBQBVa016972; Sat, 23 Apr 2016 19:26:11 +0800 From: Beilei Xing To: jingjing.wu@intel.com Cc: dev@dpdk.org, Beilei Xing Date: Sat, 23 Apr 2016 19:26:09 +0800 Message-Id: <1461410769-16942-1-git-send-email-beilei.xing@intel.com> X-Mailer: git-send-email 1.7.4.1 Subject: [dpdk-dev] [PATCH] i40e: configure MTU X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 23 Apr 2016 11:26:41 -0000 This patch enables configuring MTU for i40e. Since changing MTU needs to reconfigure queue, stop port first before configuring MTU. Signed-off-by: Beilei Xing --- drivers/net/i40e/i40e_ethdev.c | 49 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c index bc28d3c..29259b9 100644 --- a/drivers/net/i40e/i40e_ethdev.c +++ b/drivers/net/i40e/i40e_ethdev.c @@ -447,6 +447,8 @@ static int i40e_get_eeprom(struct rte_eth_dev *dev, static void i40e_set_default_mac_addr(struct rte_eth_dev *dev, struct ether_addr *mac_addr); +static int i40e_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu); + static const struct rte_pci_id pci_id_i40e_map[] = { #define RTE_PCI_DEV_ID_DECL_I40E(vend, dev) {RTE_PCI_DEVICE(vend, dev)}, #include "rte_pci_dev_ids.h" @@ -520,6 +522,7 @@ static const struct eth_dev_ops i40e_eth_dev_ops = { .get_eeprom_length = i40e_get_eeprom_length, .get_eeprom = i40e_get_eeprom, .mac_addr_set = i40e_set_default_mac_addr, + .mtu_set = i40e_dev_mtu_set, }; /* store statistics names and its offset in stats structure */ @@ -9104,3 +9107,49 @@ static void i40e_set_default_mac_addr(struct rte_eth_dev *dev, /* Flags: 0x3 updates port address */ i40e_aq_mac_address_write(hw, 0x3, mac_addr->addr_bytes, NULL); } + +static int i40e_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu) +{ + struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private); + struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct rte_eth_dev_data *dev_data = pf->dev_data; + struct rte_eth_dev_info dev_info; + struct i40e_rx_queue *rxq; + int i; + uint16_t len; + uint32_t frame_size = mtu + ETHER_HDR_LEN + ETHER_CRC_LEN; + int ret = 0; + + i40e_dev_info_get(dev, &dev_info); + + /* check if mtu is within the allowed range */ + if ((mtu < ETHER_MIN_MTU) || (frame_size > dev_info.max_rx_pktlen)) + return -EINVAL; + + /* mtu setting is forbidden if port is start */ + if (dev_data->dev_started) { + PMD_DRV_LOG(ERR, + "port %d must be stopped before configuration\n", + dev_data->port_id); + return -EBUSY; + } + + if (frame_size > ETHER_MAX_LEN) + dev_data->dev_conf.rxmode.jumbo_frame = 1; + else + dev_data->dev_conf.rxmode.jumbo_frame = 0; + + for (i = 0; i < dev_data->nb_rx_queues; i++) { + rxq = dev_data->rx_queues[i]; + if (!rxq || !rxq->q_set) + continue; + + dev_data->dev_conf.rxmode.max_rx_pkt_len = frame_size; + len = hw->func_caps.rx_buf_chain_len * rxq->rx_buf_len; + rxq->max_pkt_len = RTE_MIN(len, frame_size); + } + + ret = i40e_dev_rx_init(pf); + + return ret; +} -- 2.5.0