From patchwork Fri Jan 25 10:35:31 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jason Wang X-Patchwork-Id: 215633 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id ED4F12C008C for ; Fri, 25 Jan 2013 22:57:24 +1100 (EST) Received: from localhost ([::1]:33696 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TyhuN-0001BE-1h for incoming@patchwork.ozlabs.org; Fri, 25 Jan 2013 06:57:23 -0500 Received: from eggs.gnu.org ([208.118.235.92]:46486) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TygxJ-0004Xt-Hn for qemu-devel@nongnu.org; Fri, 25 Jan 2013 05:56:27 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TygxG-0004gy-Nl for qemu-devel@nongnu.org; Fri, 25 Jan 2013 05:56:20 -0500 Received: from mx1.redhat.com ([209.132.183.28]:47793) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TygxG-0004fG-Fe for qemu-devel@nongnu.org; Fri, 25 Jan 2013 05:56:18 -0500 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id r0PAit0W031119 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 25 Jan 2013 05:44:55 -0500 Received: from amd-6168-8-1.englab.nay.redhat.com (amd-6168-8-1.englab.nay.redhat.com [10.66.104.52]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id r0PAiEqp025921; Fri, 25 Jan 2013 05:44:51 -0500 From: Jason Wang To: mst@redhat.com, qemu-devel@nongnu.org, aliguori@us.ibm.com, shajnocz@redhat.com Date: Fri, 25 Jan 2013 18:35:31 +0800 Message-Id: <1359110143-42984-9-git-send-email-jasowang@redhat.com> In-Reply-To: <1359110143-42984-1-git-send-email-jasowang@redhat.com> References: <1359110143-42984-1-git-send-email-jasowang@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 209.132.183.28 Cc: krkumar2@in.ibm.com, kvm@vger.kernel.org, mprivozn@redhat.com, Jason Wang , rusty@rustcorp.com.au, gaowanlong@cn.fujitsu.com, jwhan@filewood.snu.ac.kr, shiyer@redhat.com Subject: [Qemu-devel] [PATCH V2 08/20] tap: import linux multiqueue constants X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Import multiqueue constants from if_tun.h from 3.8-rc3. A new ifr flag IFF_MULTI_QUEUE were introduced to create a multiqueue backend by calling TUNSETIFF with the this flag and with the same interface name many times. A new ioctl TUNSETQUEUE were introduced. When doing this ioctl with IFF_DETACH_QUEUE, the queue were disabled in the linux kernel. When doing this ioctl with IFF_ATTACH_QUEUE, the queue were enabled in the linux kernel. Signed-off-by: Jason Wang --- net/tap-linux.h | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/net/tap-linux.h b/net/tap-linux.h index cb2a6d4..65087e1 100644 --- a/net/tap-linux.h +++ b/net/tap-linux.h @@ -29,6 +29,7 @@ #define TUNSETSNDBUF _IOW('T', 212, int) #define TUNGETVNETHDRSZ _IOR('T', 215, int) #define TUNSETVNETHDRSZ _IOW('T', 216, int) +#define TUNSETQUEUE _IOW('T', 217, int) #endif @@ -36,6 +37,9 @@ #define IFF_TAP 0x0002 #define IFF_NO_PI 0x1000 #define IFF_VNET_HDR 0x4000 +#define IFF_MULTI_QUEUE 0x0100 +#define IFF_ATTACH_QUEUE 0x0200 +#define IFF_DETACH_QUEUE 0x0400 /* Features for GSO (TUNSETOFFLOAD). */ #define TUN_F_CSUM 0x01 /* You can hand me unchecksummed packets. */