Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756425Ab1DVRcC (ORCPT ); Fri, 22 Apr 2011 13:32:02 -0400 Received: from e39.co.us.ibm.com ([32.97.110.160]:46715 "EHLO e39.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756348Ab1DVRcA (ORCPT ); Fri, 22 Apr 2011 13:32:00 -0400 Subject: Re: [PATCH V3 0/8] macvtap/vhost TX zero copy support From: Shirley Ma To: Jon Mason Cc: David Miller , mst@redhat.com, Eric Dumazet , Avi Kivity , Arnd Bergmann , netdev@vger.kernel.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org In-Reply-To: References: <1303328216.19336.18.camel@localhost.localdomain> Content-Type: text/plain; charset="UTF-8" Date: Fri, 22 Apr 2011 10:31:48 -0700 Message-ID: <1303493508.10632.2.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 (2.28.3-1.fc12) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 723 Lines: 17 On Thu, 2011-04-21 at 10:29 -0400, Jon Mason wrote: > Why are only these 3 drivers getting support? As far as I can tell, > the only requirement is HIGHDMA. If this is the case, is there really > a need for an additional flag to support this? If you can key off of > HIGHDMA, all devices that support this would get the benefit. Agreed. So far, I have only verified these three 10Gb NICs we have in our lab. We can enable all devices which support HIGHDMA. Thanks Shirley -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/