From patchwork Wed Jun 7 09:55:15 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhang Chen X-Patchwork-Id: 9771191 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id F18BD6034B for ; Wed, 7 Jun 2017 10:02:11 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0081328479 for ; Wed, 7 Jun 2017 10:02:12 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E8CAC284D2; Wed, 7 Jun 2017 10:02:11 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 6D9BE28479 for ; Wed, 7 Jun 2017 10:02:11 +0000 (UTC) Received: from localhost ([::1]:42391 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dIXn0-0006ZY-BX for patchwork-qemu-devel@patchwork.kernel.org; Wed, 07 Jun 2017 06:02:10 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:60703) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dIXgM-0000sg-Do for qemu-devel@nongnu.org; Wed, 07 Jun 2017 05:55:20 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dIXgK-0003WL-BW for qemu-devel@nongnu.org; Wed, 07 Jun 2017 05:55:18 -0400 Received: from [59.151.112.132] (port=2775 helo=heian.cn.fujitsu.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dIXgJ-0003UP-Vt for qemu-devel@nongnu.org; Wed, 07 Jun 2017 05:55:16 -0400 X-IronPort-AV: E=Sophos;i="5.22,518,1449504000"; d="scan'208";a="19761098" Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 07 Jun 2017 17:55:13 +0800 Received: from G08CNEXCHPEKD02.g08.fujitsu.local (unknown [10.167.33.83]) by cn.fujitsu.com (Postfix) with ESMTP id C708347C7C61; Wed, 7 Jun 2017 17:55:13 +0800 (CST) Received: from localhost.localdomain (10.167.226.56) by G08CNEXCHPEKD02.g08.fujitsu.local (10.167.33.89) with Microsoft SMTP Server (TLS) id 14.3.319.2; Wed, 7 Jun 2017 17:55:12 +0800 From: Zhang Chen To: qemu devel , Jason Wang Date: Wed, 7 Jun 2017 17:55:15 +0800 Message-ID: <1496829322-17099-4-git-send-email-zhangchen.fnst@cn.fujitsu.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1496829322-17099-1-git-send-email-zhangchen.fnst@cn.fujitsu.com> References: <1496829322-17099-1-git-send-email-zhangchen.fnst@cn.fujitsu.com> MIME-Version: 1.0 X-Originating-IP: [10.167.226.56] X-yoursite-MailScanner-ID: C708347C7C61.AEFA9 X-yoursite-MailScanner: Found to be clean X-yoursite-MailScanner-From: zhangchen.fnst@cn.fujitsu.com X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 59.151.112.132 Subject: [Qemu-devel] [PATCH V6 03/10] net/filter-mirror.c: Add new option to enable vnet support for filter-redirector X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: zhanghailiang , Li Zhijian , weifuqiang , "eddie . dong" , Zhang Chen , bian naimeng Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP We add the vnet_hdr_support option for filter-redirector, default is disable. If you use virtio-net-pci net driver, please enable it. Because colo-compare or other modules needs the vnet_hdr_len to parse packet, so we add this new option send the len to others. You can use it for example: -object filter-redirector,id=r0,netdev=hn0,queue=tx,outdev=red0,vnet_hdr_support Signed-off-by: Zhang Chen --- net/filter-mirror.c | 28 ++++++++++++++++++++++++++++ qemu-options.hx | 6 +++--- 2 files changed, 31 insertions(+), 3 deletions(-) diff --git a/net/filter-mirror.c b/net/filter-mirror.c index 50aa81b..3413e82 100644 --- a/net/filter-mirror.c +++ b/net/filter-mirror.c @@ -376,6 +376,13 @@ static char *filter_redirector_get_outdev(Object *obj, Error **errp) return g_strdup(s->outdev); } +static bool filter_redirector_get_vnet_hdr(Object *obj, Error **errp) +{ + MirrorState *s = FILTER_REDIRECTOR(obj); + + return s->vnet_hdr; +} + static void filter_redirector_set_outdev(Object *obj, const char *value, Error **errp) { @@ -385,6 +392,15 @@ filter_redirector_set_outdev(Object *obj, const char *value, Error **errp) s->outdev = g_strdup(value); } +static void filter_redirector_set_vnet_hdr(Object *obj, + bool value, + Error **errp) +{ + MirrorState *s = FILTER_REDIRECTOR(obj); + + s->vnet_hdr = value; +} + static void filter_mirror_init(Object *obj) { MirrorState *s = FILTER_MIRROR(obj); @@ -405,10 +421,22 @@ static void filter_mirror_init(Object *obj) static void filter_redirector_init(Object *obj) { + MirrorState *s = FILTER_REDIRECTOR(obj); + object_property_add_str(obj, "indev", filter_redirector_get_indev, filter_redirector_set_indev, NULL); object_property_add_str(obj, "outdev", filter_redirector_get_outdev, filter_redirector_set_outdev, NULL); + + /* + * The vnet_hdr is disabled by default, if you want to enable + * this option, you must enable all the option on related modules + * (like other filter or colo-compare). + */ + s->vnet_hdr = false; + object_property_add_bool(obj, "vnet_hdr_support", + filter_redirector_get_vnet_hdr, + filter_redirector_set_vnet_hdr, NULL); } static void filter_mirror_fini(Object *obj) diff --git a/qemu-options.hx b/qemu-options.hx index 5c09fae..e78b942 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -4028,11 +4028,11 @@ queue @var{all|rx|tx} is an option that can be applied to any netfilter. filter-mirror on netdev @var{netdevid},mirror net packet to chardev@var{chardevid}, if have the vnet_hdr_support flag, filter-mirror will mirror packet with vnet_hdr_len. -@item -object filter-redirector,id=@var{id},netdev=@var{netdevid},indev=@var{chardevid}, -outdev=@var{chardevid}[,queue=@var{all|rx|tx}] +@item -object filter-redirector,id=@var{id},netdev=@var{netdevid},indev=@var{chardevid},outdev=@var{chardevid},queue=@var{all|rx|tx}[,vnet_hdr_support] filter-redirector on netdev @var{netdevid},redirect filter's net packet to chardev -@var{chardevid},and redirect indev's packet to filter. +@var{chardevid},and redirect indev's packet to filter.if have the vnet_hdr_support flag, +filter-redirector will redirect packet with vnet_hdr_len. Create a filter-redirector we need to differ outdev id from indev id, id can not be the same. we can just use indev or outdev, but at least one of indev or outdev need to be specified.