From patchwork Thu Jun 2 15:43:30 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aaron Conole X-Patchwork-Id: 629304 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3rLBSH39tPz9t8R for ; Fri, 3 Jun 2016 01:47:27 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161580AbcFBPqv (ORCPT ); Thu, 2 Jun 2016 11:46:51 -0400 Received: from mx1.redhat.com ([209.132.183.28]:53252 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1161820AbcFBPnd (ORCPT ); Thu, 2 Jun 2016 11:43:33 -0400 Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 6504A627DA; Thu, 2 Jun 2016 15:43:33 +0000 (UTC) Received: from aconole-fed23.bos.redhat.com (dhcp-25-45.bos.redhat.com [10.18.25.45]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u52FhV7n001094; Thu, 2 Jun 2016 11:43:32 -0400 From: Aaron Conole To: virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, "Michael S. Tsirkin" Subject: [PATCH -next 1/2] virtio: Start feature MTU support Date: Thu, 2 Jun 2016 11:43:30 -0400 Message-Id: <1464882211-18723-2-git-send-email-aconole@redhat.com> In-Reply-To: <1464882211-18723-1-git-send-email-aconole@redhat.com> References: <1464882211-18723-1-git-send-email-aconole@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Thu, 02 Jun 2016 15:43:33 +0000 (UTC) Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This commit adds the feature bit and associated mtu device entry for the virtio network device. Future commits will make use of these bits to support negotiated MTU. Signed-off-by: Aaron Conole --- include/uapi/linux/virtio_net.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/uapi/linux/virtio_net.h b/include/uapi/linux/virtio_net.h index ec32293..751ff59 100644 --- a/include/uapi/linux/virtio_net.h +++ b/include/uapi/linux/virtio_net.h @@ -73,6 +73,8 @@ struct virtio_net_config { * Legal values are between 1 and 0x8000 */ __u16 max_virtqueue_pairs; + /* Default maximum transmit unit advice */ + __u16 mtu; } __attribute__((packed)); /*