From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 6637DA04B1; Thu, 27 Aug 2020 18:14:48 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 0429F1C0D9; Thu, 27 Aug 2020 18:13:50 +0200 (CEST) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by dpdk.org (Postfix) with ESMTP id 7BB291C0B0 for ; Thu, 27 Aug 2020 18:13:40 +0200 (CEST) IronPort-SDR: 8a0kXChYMU7l8q4HlTiDCuv9bGVxYGE11ra2/fj6dls9g1RMORYDjrIfVDk6VvHfHhDw9EtOD/ cdmTjyTTaH7Q== X-IronPort-AV: E=McAfee;i="6000,8403,9726"; a="220767018" X-IronPort-AV: E=Sophos;i="5.76,360,1592895600"; d="scan'208";a="220767018" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Aug 2020 09:13:27 -0700 IronPort-SDR: Oi4FkF092IfUDtHwclcK2n5h5o5iU1jY/09qNV5j/+6H0tVasmNz3WSVl0SBBuTiqyYDYcW5p3 TI7xn5ENBuxg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.76,360,1592895600"; d="scan'208";a="280681504" Received: from silpixa00399953.ir.intel.com (HELO silpixa00399953.ger.corp.intel.com) ([10.237.222.53]) by fmsmga007.fm.intel.com with ESMTP; 27 Aug 2020 09:13:26 -0700 From: Ciara Power To: dev@dpdk.org Cc: Ciara Power , Qi Zhang , Xiao Wang Date: Thu, 27 Aug 2020 17:12:55 +0100 Message-Id: <20200827161304.32300-9-ciara.power@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200827161304.32300-1-ciara.power@intel.com> References: <20200807155859.63888-1-ciara.power@intel.com> <20200827161304.32300-1-ciara.power@intel.com> Subject: [dpdk-dev] [PATCH v2 08/17] net/fm10k: add checks for max SIMD bitwidth 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: , Errors-To: dev-bounces@dpdk.org Sender: "dev" When choosing a vector path to take, an extra condition must be satisfied to ensure the max SIMD bitwidth allows for the CPU enabled path. Cc: Qi Zhang Cc: Xiao Wang Signed-off-by: Ciara Power --- drivers/net/fm10k/fm10k_ethdev.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/net/fm10k/fm10k_ethdev.c b/drivers/net/fm10k/fm10k_ethdev.c index b574693bca..f7c41d4377 100644 --- a/drivers/net/fm10k/fm10k_ethdev.c +++ b/drivers/net/fm10k/fm10k_ethdev.c @@ -2937,7 +2937,9 @@ fm10k_set_tx_function(struct rte_eth_dev *dev) if (rte_eal_process_type() != RTE_PROC_PRIMARY) { /* primary process has set the ftag flag and offloads */ txq = dev->data->tx_queues[0]; - if (fm10k_tx_vec_condition_check(txq)) { + if (fm10k_tx_vec_condition_check(txq) || + rte_get_max_simd_bitwidth() + < RTE_MAX_128_SIMD) { dev->tx_pkt_burst = fm10k_xmit_pkts; dev->tx_pkt_prepare = fm10k_prep_pkts; PMD_INIT_LOG(DEBUG, "Use regular Tx func"); @@ -2956,7 +2958,8 @@ fm10k_set_tx_function(struct rte_eth_dev *dev) txq = dev->data->tx_queues[i]; txq->tx_ftag_en = tx_ftag_en; /* Check if Vector Tx is satisfied */ - if (fm10k_tx_vec_condition_check(txq)) + if (fm10k_tx_vec_condition_check(txq) || + rte_get_max_simd_bitwidth() < RTE_MAX_128_SIMD) use_sse = 0; } @@ -2990,7 +2993,9 @@ fm10k_set_rx_function(struct rte_eth_dev *dev) * conditions to be met. */ if (!fm10k_rx_vec_condition_check(dev) && - dev_info->rx_vec_allowed && !rx_ftag_en) { + dev_info->rx_vec_allowed && !rx_ftag_en && + rte_get_max_simd_bitwidth() + >= RTE_MAX_128_SIMD) { if (dev->data->scattered_rx) dev->rx_pkt_burst = fm10k_recv_scattered_pkts_vec; else -- 2.17.1