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 5D527A320B for ; Mon, 21 Oct 2019 13:55:36 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 0F87B1BEEB; Mon, 21 Oct 2019 13:55:35 +0200 (CEST) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id 2B4951BEE0 for ; Mon, 21 Oct 2019 13:55:32 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 21 Oct 2019 04:55:32 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.67,323,1566889200"; d="scan'208";a="209321217" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.10]) ([10.237.221.10]) by orsmga002.jf.intel.com with ESMTP; 21 Oct 2019 04:55:29 -0700 To: vattunuru@marvell.com, dev@dpdk.org Cc: thomas@monjalon.net, jerinj@marvell.com, kirankumark@marvell.com, olivier.matz@6wind.com, anatoly.burakov@intel.com, arybchenko@solarflare.com, stephen@networkplumber.org References: <20190816061252.17214-1-vattunuru@marvell.com> <20191021080324.10659-1-vattunuru@marvell.com> <20191021080324.10659-3-vattunuru@marvell.com> From: Ferruh Yigit Openpgp: preference=signencrypt Autocrypt: addr=ferruh.yigit@intel.com; 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charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Subject: Re: [dpdk-dev] [PATCH v11 2/4] eal: add legacy kni option 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" On 10/21/2019 9:03 AM, vattunuru@marvell.com wrote: > From: Vamsi Attunuru > > This adds a "--legacy-kni" command-line option. It will > be used to run existing KNI applications with DPDK 19.11 > and later. > > Signed-off-by: Vamsi Attunuru > Suggested-by: Ferruh Yigit <...> > diff --git a/lib/librte_eal/common/eal_options.h b/lib/librte_eal/common/eal_options.h > index 9855429..1010ed3 100644 > --- a/lib/librte_eal/common/eal_options.h > +++ b/lib/librte_eal/common/eal_options.h > @@ -69,6 +69,8 @@ enum { > OPT_IOVA_MODE_NUM, > #define OPT_MATCH_ALLOCATIONS "match-allocations" > OPT_MATCH_ALLOCATIONS_NUM, > +#define OPT_LEGACY_KNI "legacy-kni" > + OPT_LEGACY_KNI_NUM, > OPT_LONG_MAX_NUM > }; Two concerns, 1- "legacy-kni" doesn't have enough context 2- I prefer to keep existing behavior default, at least for a while, something like next LTS etc, meanwhile this patch can be around for a good time and can be good to switch. Based on above to, what do you think to rename the option to 'kni-iova-va', if not set by default it will be "IOVA=PA", when set it will enable "IOVA=VA" mode?