From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <beilei.xing@intel.com> Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by dpdk.org (Postfix) with ESMTP id 281F61B1D0 for <dev@dpdk.org>; Thu, 11 Jan 2018 08:27:00 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 10 Jan 2018 23:26:59 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.46,343,1511856000"; d="scan'208";a="165884731" Received: from fmsmsx104.amr.corp.intel.com ([10.18.124.202]) by orsmga004.jf.intel.com with ESMTP; 10 Jan 2018 23:26:58 -0800 Received: from fmsmsx117.amr.corp.intel.com (10.18.116.17) by fmsmsx104.amr.corp.intel.com (10.18.124.202) with Microsoft SMTP Server (TLS) id 14.3.319.2; Wed, 10 Jan 2018 23:26:58 -0800 Received: from shsmsx152.ccr.corp.intel.com (10.239.6.52) by fmsmsx117.amr.corp.intel.com (10.18.116.17) with Microsoft SMTP Server (TLS) id 14.3.319.2; Wed, 10 Jan 2018 23:26:58 -0800 Received: from shsmsx101.ccr.corp.intel.com ([169.254.1.159]) by SHSMSX152.ccr.corp.intel.com ([169.254.6.93]) with mapi id 14.03.0319.002; Thu, 11 Jan 2018 15:26:56 +0800 From: "Xing, Beilei" <beilei.xing@intel.com> To: Tonghao Zhang <xiangxia.m.yue@gmail.com>, "dev@dpdk.org" <dev@dpdk.org> Thread-Topic: [dpdk-dev] [PATCH 2/5] net/ixgbevf: set the inter-interrupt interval for EITR. Thread-Index: AQHThi82NafNCLMBk0GZ47lqYf7n0aNuS/YA Date: Thu, 11 Jan 2018 07:26:55 +0000 Message-ID: <94479800C636CB44BD422CB454846E013208ACB9@SHSMSX101.ccr.corp.intel.com> References: <1515161439-4792-1-git-send-email-xiangxia.m.yue@gmail.com> <1515161439-4792-2-git-send-email-xiangxia.m.yue@gmail.com> In-Reply-To: <1515161439-4792-2-git-send-email-xiangxia.m.yue@gmail.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.239.127.40] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Subject: Re: [dpdk-dev] [PATCH 2/5] net/ixgbevf: set the inter-interrupt interval for EITR. 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: Thu, 11 Jan 2018 07:27:01 -0000 > -----Original Message----- > From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Tonghao Zhang > Sent: Friday, January 5, 2018 10:11 PM > To: dev@dpdk.org > Cc: Tonghao Zhang <xiangxia.m.yue@gmail.com> > Subject: [dpdk-dev] [PATCH 2/5] net/ixgbevf: set the inter-interrupt inte= rval > for EITR. >=20 > Set EITR interval as default. This patch can improve the performance when > we enable the rx-intrrupt to process the packets because we hope rx- > intrrupt reduce CPU. >=20 > The 200us value of EITR makes the performance better with the low CPU. >=20 > Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com> > --- > drivers/net/ixgbe/ixgbe_ethdev.c | 3 +++ > 1 file changed, 3 insertions(+) >=20 > diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c > b/drivers/net/ixgbe/ixgbe_ethdev.c > index e67389f..b20cab9 100644 > --- a/drivers/net/ixgbe/ixgbe_ethdev.c > +++ b/drivers/net/ixgbe/ixgbe_ethdev.c > @@ -5780,6 +5780,9 @@ static void ixgbevf_set_vfta_all(struct rte_eth_dev > *dev, bool on) > if (vector_idx < base + intr_handle->nb_efd - 1) > vector_idx++; > } > + > + IXGBE_WRITE_REG(hw, IXGBE_VTEITR(IXGBE_MISC_VEC_ID), > + IXGBE_EITR_INTERVAL_US(200) | Is it possible to configure interval via DPDK configuration? Just like CONF= IG_RTE_LIBRTE_I40E_ITR_INTERVAL for i40e. Maybe the value is good for you but not suitable for other users. Besides, seems the patches in the patchset have no dependency, needn't put = them into one patchset, and then the Acked patch can be applied quickly. > IXGBE_EITR_CNT_WDIS); > } >=20 > /** > -- > 1.8.3.1