From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <remy.horton@intel.com> Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by dpdk.org (Postfix) with ESMTP id 916FA1B964 for <dev@dpdk.org>; Tue, 10 Apr 2018 11:43:28 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 10 Apr 2018 02:43:28 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.48,431,1517904000"; d="scan'208";a="33107546" Received: from rhorton-mobl1.ger.corp.intel.com (HELO FC23.ir.intel.com) ([163.33.230.22]) by orsmga006.jf.intel.com with ESMTP; 10 Apr 2018 02:43:26 -0700 From: Remy Horton <remy.horton@intel.com> To: dev@dpdk.org Cc: John McNamara <john.mcnamara@intel.com>, Wenzhuo Lu <wenzhuo.lu@intel.com>, Jingjing Wu <jingjing.wu@intel.com>, Qi Zhang <qi.z.zhang@intel.com>, Beilei Xing <beilei.xing@intel.com>, Shreyansh Jain <shreyansh.jain@nxp.com>, Thomas Monjalon <thomas@monjalon.net> Date: Tue, 10 Apr 2018 10:43:17 +0100 Message-Id: <20180410094319.24083-3-remy.horton@intel.com> X-Mailer: git-send-email 2.9.5 In-Reply-To: <20180410094319.24083-1-remy.horton@intel.com> References: <20180410094319.24083-1-remy.horton@intel.com> Subject: [dpdk-dev] [PATCH v6 2/4] net/e1000: add TxRx tuning parameters X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions <dev.dpdk.org> List-Unsubscribe: <https://dpdk.org/ml/options/dev>, <mailto:dev-request@dpdk.org?subject=unsubscribe> List-Archive: <http://dpdk.org/ml/archives/dev/> List-Post: <mailto:dev@dpdk.org> List-Help: <mailto:dev-request@dpdk.org?subject=help> List-Subscribe: <https://dpdk.org/ml/listinfo/dev>, <mailto:dev-request@dpdk.org?subject=subscribe> X-List-Received-Date: Tue, 10 Apr 2018 09:43:29 -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 <remy.horton@intel.com> Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com> --- drivers/net/e1000/em_ethdev.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/e1000/em_ethdev.c b/drivers/net/e1000/em_ethdev.c index f727382..2035ea8 100644 --- a/drivers/net/e1000/em_ethdev.c +++ b/drivers/net/e1000/em_ethdev.c @@ -1100,6 +1100,12 @@ eth_em_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info) dev_info->speed_capa = ETH_LINK_SPEED_10M_HD | ETH_LINK_SPEED_10M | ETH_LINK_SPEED_100M_HD | ETH_LINK_SPEED_100M | ETH_LINK_SPEED_1G; + + /* Preferred queue parameters */ + dev_info->default_rxportconf.nb_queues = 1; + dev_info->default_txportconf.nb_queues = 1; + dev_info->default_txportconf.ring_size = 256; + dev_info->default_rxportconf.ring_size = 256; } /* return 0 means link status changed, -1 means not changed */ -- 2.9.5