From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Marchand Subject: Re: [PATCH v3 01/17] mk: Introduce ARMv7 architecture Date: Wed, 28 Oct 2015 14:40:55 +0100 Message-ID: References: <1445877458-31052-1-git-send-email-viktorin@rehivetech.com> <1445973229-22058-1-git-send-email-viktorin@rehivetech.com> <1445973229-22058-2-git-send-email-viktorin@rehivetech.com> <20151028115606.74fb2fb8@jvn> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Cc: "dev@dpdk.org" , Vlastimil Kosar To: Jan Viktorin Return-path: Received: from mail-oi0-f49.google.com (mail-oi0-f49.google.com [209.85.218.49]) by dpdk.org (Postfix) with ESMTP id 7D7DD8DA2 for ; Wed, 28 Oct 2015 14:40:56 +0100 (CET) Received: by oiad129 with SMTP id d129so4368864oia.0 for ; Wed, 28 Oct 2015 06:40:56 -0700 (PDT) In-Reply-To: <20151028115606.74fb2fb8@jvn> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" On Wed, Oct 28, 2015 at 11:56 AM, Jan Viktorin wrote: > On Wed, 28 Oct 2015 11:09:21 +0100 > David Marchand wrote: > > > +# PCI is usually not used on ARM > > > +CONFIG_RTE_EAL_IGB_UIO=n > > > > > > > Not sure "usually not used" is a good reason to disable something. > > Is there a real issue on arm with igb_uio code (compilation, pci > accesses) ? > > > > Well, it requires to set some options in Linux Kernel (at least PCI > support) which are usually disabled by the in-kernel *arm*_defconfigs. > Moreover, it seems I cannot enable it for some ARM architectures (I've > tried Altera SoC FPGA). That's because you hardly find an ARMv7 system > with a PCI bus. I suppose that if somebody _really_ needs this, she would > enable it by hand. > > At the moment, it breaks my common builds... The driver is mostly > useless on ARMv7 and just takes space in the filesystem. > > Ok, well, at the moment, you seem to be the only user :-) Let's see what other people say. -- David Marchand