From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eli Cohen Subject: Re: [PATCH 13/17] mlx4: Add blue flame support for kernel consumers Date: Mon, 7 Mar 2011 23:48:12 +0200 Message-ID: <20110307214812.GA19540@mtldesk30> References: <20110307213648.GA18682@mtldesk30> <20110307.134001.245386278.davem@davemloft.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: roland@purestorage.com, netdev@vger.kernel.org To: David Miller Return-path: Received: from mail-ew0-f46.google.com ([209.85.215.46]:57238 "EHLO mail-ew0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755246Ab1CGVqN (ORCPT ); Mon, 7 Mar 2011 16:46:13 -0500 Received: by ewy6 with SMTP id 6so1728402ewy.19 for ; Mon, 07 Mar 2011 13:46:10 -0800 (PST) Content-Disposition: inline In-Reply-To: <20110307.134001.245386278.davem@davemloft.net> Sender: netdev-owner@vger.kernel.org List-ID: On Mon, Mar 07, 2011 at 01:40:01PM -0800, David Miller wrote: > From: Eli Cohen > Date: Mon, 7 Mar 2011 23:36:48 +0200 > > > Specifically, some archs may not support write combining. > > They should just create a non-write-combining mapping if they > don't support it. > I wouldn't expect that since the caller function could be mislead to believe it has a write combining capable area.