From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by dpdk.org (Postfix) with ESMTP id 28BC77CBD for ; Wed, 21 Mar 2018 15:27:57 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 21 Mar 2018 07:27:56 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.48,340,1517904000"; d="scan'208";a="213360444" Received: from rhorton-mobl1.ger.corp.intel.com (HELO FC23.ir.intel.com) ([163.33.230.232]) by fmsmga006.fm.intel.com with ESMTP; 21 Mar 2018 07:27:55 -0700 From: Remy Horton To: dev@dpdk.org Cc: John McNamara , Wenzhuo Lu , Jingjing Wu , Qi Zhang , Beilei Xing , Shreyansh Jain , Thomas Monjalon Date: Wed, 21 Mar 2018 14:27:48 +0000 Message-Id: <20180321142749.27520-4-remy.horton@intel.com> X-Mailer: git-send-email 2.9.5 In-Reply-To: <20180321142749.27520-1-remy.horton@intel.com> References: <20180321142749.27520-1-remy.horton@intel.com> Subject: [dpdk-dev] [PATCH v2 3/4] net/i40e: add TxRx tuning parameters X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 Mar 2018 14:27:57 -0000 The optimal values of several transmission & reception related parameters, such as burst sizes, descriptor ring sizes, and number of queues, varies between different network interface devices. This patch allows individual PMDs to specify preferred parameter values. Signed-off-by: Remy Horton --- drivers/net/i40e/i40e_ethdev.c | 33 ++++++++++++++++++++++++++++++--- 1 file changed, 30 insertions(+), 3 deletions(-) diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c index 508b417..7be00ad 100644 --- a/drivers/net/i40e/i40e_ethdev.c +++ b/drivers/net/i40e/i40e_ethdev.c @@ -3248,15 +3248,42 @@ i40e_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info) dev_info->max_tx_queues += dev_info->vmdq_queue_num; } - if (I40E_PHY_TYPE_SUPPORT_40G(hw->phy.phy_types)) + if (I40E_PHY_TYPE_SUPPORT_40G(hw->phy.phy_types)) { /* For XL710 */ dev_info->speed_capa = ETH_LINK_SPEED_40G; - else if (I40E_PHY_TYPE_SUPPORT_25G(hw->phy.phy_types)) + dev_info->default_rxportconf.nb_queues = 2; + dev_info->default_txportconf.nb_queues = 2; + if (dev->data->nb_rx_queues == 1) + dev_info->default_rxportconf.ring_size = 2048; + else + dev_info->default_rxportconf.ring_size = 1024; + if (dev->data->nb_tx_queues == 1) + dev_info->default_txportconf.ring_size = 1024; + else + dev_info->default_txportconf.ring_size = 512; + + } else if (I40E_PHY_TYPE_SUPPORT_25G(hw->phy.phy_types)) { /* For XXV710 */ dev_info->speed_capa = ETH_LINK_SPEED_25G; - else + dev_info->default_rxportconf.nb_queues = 1; + dev_info->default_txportconf.nb_queues = 1; + dev_info->default_rxportconf.ring_size = 256; + dev_info->default_txportconf.ring_size = 256; + } else { /* For X710 */ dev_info->speed_capa = ETH_LINK_SPEED_1G | ETH_LINK_SPEED_10G; + dev_info->default_rxportconf.nb_queues = 1; + dev_info->default_txportconf.nb_queues = 1; + if (dev->data->dev_conf.link_speeds & ETH_LINK_SPEED_10G) { + dev_info->default_rxportconf.ring_size = 512; + dev_info->default_txportconf.ring_size = 256; + } else { + dev_info->default_rxportconf.ring_size = 256; + dev_info->default_txportconf.ring_size = 256; + } + } + dev_info->default_rxportconf.burst_size = 32; + dev_info->default_txportconf.burst_size = 32; } static int -- 2.9.5