From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <zhiyong.yang@intel.com> Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by dpdk.org (Postfix) with ESMTP id 7A1DD7CBD for <dev@dpdk.org>; Mon, 4 Sep 2017 09:59:57 +0200 (CEST) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga103.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 04 Sep 2017 00:59:56 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.41,473,1498546800"; d="scan'208";a="131439818" Received: from fmsmsx103.amr.corp.intel.com ([10.18.124.201]) by orsmga002.jf.intel.com with ESMTP; 04 Sep 2017 00:59:34 -0700 Received: from fmsmsx122.amr.corp.intel.com (10.18.125.37) by FMSMSX103.amr.corp.intel.com (10.18.124.201) with Microsoft SMTP Server (TLS) id 14.3.319.2; Mon, 4 Sep 2017 00:59:34 -0700 Received: from bgsmsx153.gar.corp.intel.com (10.224.23.4) by fmsmsx122.amr.corp.intel.com (10.18.125.37) with Microsoft SMTP Server (TLS) id 14.3.319.2; Mon, 4 Sep 2017 00:59:34 -0700 Received: from bgsmsx101.gar.corp.intel.com ([169.254.1.62]) by BGSMSX153.gar.corp.intel.com ([10.224.23.4]) with mapi id 14.03.0319.002; Mon, 4 Sep 2017 13:29:30 +0530 From: "Yang, Zhiyong" <zhiyong.yang@intel.com> To: "Yao, Lei A" <lei.a.yao@intel.com>, "dev@dpdk.org" <dev@dpdk.org> CC: "thomas@monjalon.net" <thomas@monjalon.net>, "Yigit, Ferruh" <ferruh.yigit@intel.com>, "Wiles, Keith" <keith.wiles@intel.com>, "stephen@networkplumber.org" <stephen@networkplumber.org> Thread-Topic: [dpdk-dev] [PATCH v2 3/4] common_base: extend RTE_MAX_ETHPORTS from 32 to 1024 Thread-Index: AQHTJVHiJfsn2VqxlESVHPjzzVa456KkW9wg Date: Mon, 4 Sep 2017 07:59:29 +0000 Message-ID: <E182254E98A5DA4EB1E657AC7CB9BD2A8AF0D284@BGSMSX101.gar.corp.intel.com> References: <20170809084203.17562-1-zhiyong.yang@intel.com> <20170904055734.21354-1-zhiyong.yang@intel.com> <20170904055734.21354-4-zhiyong.yang@intel.com> <2DBBFF226F7CF64BAFCA79B681719D953A266703@shsmsx102.ccr.corp.intel.com> In-Reply-To: <2DBBFF226F7CF64BAFCA79B681719D953A266703@shsmsx102.ccr.corp.intel.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-titus-metadata-40: eyJDYXRlZ29yeUxhYmVscyI6IiIsIk1ldGFkYXRhIjp7Im5zIjoiaHR0cDpcL1wvd3d3LnRpdHVzLmNvbVwvbnNcL0ludGVsMyIsImlkIjoiYmFhNjcxOTAtYzA4YS00MGMxLTk2YzMtNjM5ZDhiZWNmNjNhIiwicHJvcHMiOlt7Im4iOiJDVFBDbGFzc2lmaWNhdGlvbiIsInZhbHMiOlt7InZhbHVlIjoiQ1RQX0lDIn1dfV19LCJTdWJqZWN0TGFiZWxzIjpbXSwiVE1DVmVyc2lvbiI6IjE2LjUuOS4zIiwiVHJ1c3RlZExhYmVsSGFzaCI6IjBSdlwvYVhqYjNUNU5KbHg1dWp4b01mbDJGcitLc1pJWUtkQTJnSjJcL3NCRT0ifQ== x-ctpclassification: CTP_IC dlp-product: dlpe-windows dlp-version: 11.0.0.116 dlp-reaction: no-action x-originating-ip: [10.223.10.10] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Subject: Re: [dpdk-dev] [PATCH v2 3/4] common_base: extend RTE_MAX_ETHPORTS from 32 to 1024 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions <dev.dpdk.org> List-Unsubscribe: <http://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: <http://dpdk.org/ml/listinfo/dev>, <mailto:dev-request@dpdk.org?subject=subscribe> X-List-Received-Date: Mon, 04 Sep 2017 07:59:59 -0000 Hi, Lei: > -----Original Message----- > From: Yao, Lei A > Sent: Monday, September 4, 2017 3:46 PM > To: Yang, Zhiyong <zhiyong.yang@intel.com>; dev@dpdk.org > Cc: thomas@monjalon.net; Yigit, Ferruh <ferruh.yigit@intel.com>; Wiles, K= eith > <keith.wiles@intel.com>; stephen@networkplumber.org; Yang, Zhiyong > <zhiyong.yang@intel.com> > Subject: RE: [dpdk-dev] [PATCH v2 3/4] common_base: extend > RTE_MAX_ETHPORTS from 32 to 1024 >=20 >=20 >=20 > > -----Original Message----- > > From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Zhiyong Yang > > Sent: Monday, September 4, 2017 1:58 PM > > To: dev@dpdk.org > > Cc: thomas@monjalon.net; Yigit, Ferruh <ferruh.yigit@intel.com>; > > Wiles, Keith <keith.wiles@intel.com>; stephen@networkplumber.org; > > Yang, Zhiyong <zhiyong.yang@intel.com> > > Subject: [dpdk-dev] [PATCH v2 3/4] common_base: extend > > RTE_MAX_ETHPORTS from 32 to 1024 > > > > The reasons to modify RTE_MAX_ETHPORTS is the following. > > > > 1. RTE_MAX_ETHPORTS=3D32 by default has not met user's requirements wit= h > > development of virtualization technology. Some vdev users have to > > modify the setting before the compiling. > > > > 2. port_id have been extended to 16 bits definition. But for many > > samples such as testpmd, l3fwd, num of port is still limited to > > RTE_MAX_ETHPORTS=3D32 by default. This may limit usage of 16 bits > > port_id. > > > > So, it is necessary to enlarge RTE_MAX_ETHPORTS to more than 256. > > > > Signed-off-by: Zhiyong Yang <zhiyong.yang@intel.com> > > --- > > config/common_base | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/config/common_base b/config/common_base index > > 5e97a08b6..dccc13e31 100644 > > --- a/config/common_base > > +++ b/config/common_base > > @@ -131,7 +131,7 @@ CONFIG_RTE_LIBRTE_KVARGS=3Dy # > > CONFIG_RTE_LIBRTE_ETHER=3Dy CONFIG_RTE_LIBRTE_ETHDEV_DEBUG=3Dn > > -CONFIG_RTE_MAX_ETHPORTS=3D32 > > +CONFIG_RTE_MAX_ETHPORTS=3D1024 > > CONFIG_RTE_MAX_QUEUES_PER_PORT=3D1024 > > CONFIG_RTE_LIBRTE_IEEE1588=3Dn > > CONFIG_RTE_ETHDEV_QUEUE_STAT_CNTRS=3D16 > > -- > > 2.13.3 > Hi, Zhiyong >=20 > I met one issue for changing CONFIG_RTE_MAX_ETHPORTS to 1024. > One process can only open 1024 file as maximum in common linux distributi= on, > after practice, only 1009 socket file can be used for vdev device with te= stpmd > sample. Thanks for your info. It seems that 1024 is too large and may bring some p= otential issues. Thanks Zhiyong