From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by dpdk.org (Postfix) with ESMTP id E14A6201 for ; Wed, 14 Nov 2018 14:54:49 +0100 (CET) X-Amp-Result: UNSCANNABLE X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 14 Nov 2018 05:54:48 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,232,1539673200"; d="scan'208";a="85767654" Received: from bricha3-mobl.ger.corp.intel.com ([10.237.221.107]) by fmsmga007.fm.intel.com with SMTP; 14 Nov 2018 05:54:46 -0800 Received: by (sSMTP sendmail emulation); Wed, 14 Nov 2018 13:54:46 +0000 Date: Wed, 14 Nov 2018 13:54:46 +0000 From: Bruce Richardson To: Christian Ehrhardt Cc: Luca Boccassi , dev Message-ID: <20181114135445.GA13408@bricha3-MOBL.ger.corp.intel.com> References: <20181114131838.17989-1-christian.ehrhardt@canonical.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181114131838.17989-1-christian.ehrhardt@canonical.com> Organization: Intel Research and Development Ireland Ltd. User-Agent: Mutt/1.10.1 (2018-07-13) Subject: Re: [dpdk-dev] [PATCH] build: establish an invariant machine type 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: , X-List-Received-Date: Wed, 14 Nov 2018 13:54:50 -0000 On Wed, Nov 14, 2018 at 02:18:38PM +0100, Christian Ehrhardt wrote: > Add the machine definition 'default' which is special compared > to 'native' (most optimized for current system) or any explicit > type (external entity has to decide on the type). > > It defaults to the per arch agreed common minimal baseline > needed for DPDK to reasonable work. > > That might not be the most optimized, but the most portable > version while still being able to support the CPU features > required for DPDK. > > Going forward this can be bumped up by the DPDK project, but it > can never be an invariant like 'native'. > > Distributions and other needing portable code are expected to > define the machine as 'baseline'. > Need to change 'baseline' to 'default' here. > Changes in v2: > - fixed the non 64 bit arm default type > - changed baseline to default to match the old build system > > Signed-off-by: Christian Ehrhardt Acked-by: Bruce Richardson