From patchwork Mon Jan 11 17:20:58 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Michael S. Tsirkin" X-Patchwork-Id: 42641 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [199.232.76.165]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 2C77FB6F08 for ; Tue, 12 Jan 2010 04:39:46 +1100 (EST) Received: from localhost ([127.0.0.1]:33277 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1NUOE3-0002kC-U5 for incoming@patchwork.ozlabs.org; Mon, 11 Jan 2010 12:38:47 -0500 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1NUNzk-0004aj-QK for qemu-devel@nongnu.org; Mon, 11 Jan 2010 12:24:00 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1NUNzg-0004Xz-66 for qemu-devel@nongnu.org; Mon, 11 Jan 2010 12:24:00 -0500 Received: from [199.232.76.173] (port=34462 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1NUNzg-0004Xv-10 for qemu-devel@nongnu.org; Mon, 11 Jan 2010 12:23:56 -0500 Received: from mx1.redhat.com ([209.132.183.28]:50870) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1NUNzf-0000aR-IT for qemu-devel@nongnu.org; Mon, 11 Jan 2010 12:23:55 -0500 Received: from int-mx01.intmail.prod.int.phx2.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id o0BHNrdk017158 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Mon, 11 Jan 2010 12:23:54 -0500 Received: from redhat.com (vpn2-11-60.ams2.redhat.com [10.36.11.60]) by int-mx01.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with SMTP id o0BHNqCp016718; Mon, 11 Jan 2010 12:23:52 -0500 Date: Mon, 11 Jan 2010 19:20:58 +0200 From: "Michael S. Tsirkin" To: Anthony Liguori , qemu-devel@nongnu.org Message-ID: <20100111172058.GI11936@redhat.com> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.19 (2009-01-05) X-Scanned-By: MIMEDefang 2.67 on 10.5.11.11 X-detected-operating-system: by monty-python.gnu.org: Genre and OS details not recognized. Cc: Subject: [Qemu-devel] [PATCH-RFC 08/13] net/tap: add interface to get device fd X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Will be used by vhost to attach/detach to backend. Signed-off-by: Michael S. Tsirkin --- net/tap.c | 7 +++++++ net/tap.h | 2 ++ 2 files changed, 9 insertions(+), 0 deletions(-) diff --git a/net/tap.c b/net/tap.c index d3492de..7e9ca79 100644 --- a/net/tap.c +++ b/net/tap.c @@ -269,6 +269,13 @@ static void tap_poll(VLANClientState *nc, bool enable) tap_write_poll(s, enable); } +int tap_get_fd(VLANClientState *nc) +{ + TAPState *s = DO_UPCAST(TAPState, nc, nc); + assert(nc->info->type == NET_CLIENT_TYPE_TAP); + return s->fd; +} + /* fd support */ static NetClientInfo net_tap_info = { diff --git a/net/tap.h b/net/tap.h index 538a562..a244b28 100644 --- a/net/tap.h +++ b/net/tap.h @@ -48,4 +48,6 @@ int tap_probe_vnet_hdr(int fd); int tap_probe_has_ufo(int fd); void tap_fd_set_offload(int fd, int csum, int tso4, int tso6, int ecn, int ufo); +int tap_get_fd(VLANClientState *vc); + #endif /* QEMU_NET_TAP_H */