From patchwork Thu Jan 9 07:20:26 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cui, LunyuanX" X-Patchwork-Id: 64325 X-Patchwork-Delegate: xiaolong.ye@intel.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id F2439A04F3; Thu, 9 Jan 2020 08:21:06 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 506471DBAA; Thu, 9 Jan 2020 08:21:06 +0100 (CET) Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by dpdk.org (Postfix) with ESMTP id A57851DBA9 for ; Thu, 9 Jan 2020 08:21:04 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga103.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 08 Jan 2020 23:21:03 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,413,1571727600"; d="scan'208";a="254502970" Received: from intel.sh.intel.com ([10.239.255.129]) by fmsmga002.fm.intel.com with ESMTP; 08 Jan 2020 23:21:01 -0800 From: Lunyuan Cui To: dev@dpdk.org Cc: Beilei Xing , Qi Zhang , Qiming Yang , Lunyuan Cui Date: Thu, 9 Jan 2020 07:20:26 +0000 Message-Id: <20200109072026.10517-1-lunyuanx.cui@intel.com> X-Mailer: git-send-email 2.17.1 Subject: [dpdk-dev] [PATCH] net/i40e: add warning log for VF multi-queue Rx interrupt 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" Count of queues per port is over the max usable vector, it will cause missing packets. This patch is in order to add suggestive logs. Signed-off-by: Lunyuan Cui --- drivers/net/i40e/i40e_ethdev_vf.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c index 479f8282c..68a0cb8fa 100644 --- a/drivers/net/i40e/i40e_ethdev_vf.c +++ b/drivers/net/i40e/i40e_ethdev_vf.c @@ -682,8 +682,12 @@ i40evf_config_irq_map(struct rte_eth_dev *dev) intr_handle->intr_vec[i] = vector_id; if (vector_id > I40E_MISC_VEC_ID) vector_id++; - if (vector_id > nb_msix) + if (vector_id >= nb_msix) { + PMD_DRV_LOG(WARNING, "Count of queues per port is " + "over the max usable vector(%d), it will " + "cause missing packets.", nb_msix - 1); vector_id = I40E_RX_VEC_START; + } } args.ops = VIRTCHNL_OP_CONFIG_IRQ_MAP;