From nobody Mon Feb 9 10:29:36 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=intel.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1635273564112665.9074916398225; Tue, 26 Oct 2021 11:39:24 -0700 (PDT) Received: from localhost ([::1]:50408 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mfRM2-0001lS-VA for importer@patchew.org; Tue, 26 Oct 2021 14:39:22 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:57644) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mfRAI-0007t7-Bd for qemu-devel@nongnu.org; Tue, 26 Oct 2021 14:27:18 -0400 Received: from mga11.intel.com ([192.55.52.93]:17186) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mfRAF-0007AP-Ss for qemu-devel@nongnu.org; Tue, 26 Oct 2021 14:27:14 -0400 Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Oct 2021 11:26:56 -0700 Received: from unknown (HELO localhost.localdomain) ([10.239.13.19]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Oct 2021 11:26:54 -0700 X-IronPort-AV: E=McAfee;i="6200,9189,10149"; a="227438575" X-IronPort-AV: E=Sophos;i="5.87,184,1631602800"; d="scan'208";a="227438575" X-IronPort-AV: E=Sophos;i="5.87,184,1631602800"; d="scan'208";a="497480965" From: Zhang Chen To: Jason Wang Subject: [PATCH V4 3/3] net/colo-compare.c: Remove vnet_hdr and check in payload from colo-compare Date: Wed, 27 Oct 2021 02:17:30 +0800 Message-Id: <20211026181730.3102184-4-chen.zhang@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211026181730.3102184-1-chen.zhang@intel.com> References: <20211026181730.3102184-1-chen.zhang@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=192.55.52.93; envelope-from=chen.zhang@intel.com; helo=mga11.intel.com X-Spam_score_int: -68 X-Spam_score: -6.9 X-Spam_bar: ------ X-Spam_report: (-6.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_HI=-5, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Zhang Chen , qemu-dev , Li Zhijian , Markus Armbruster Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZM-MESSAGEID: 1635273565991100001 Content-Type: text/plain; charset="utf-8" Enable vnet_hdr in payload by default. Make it easier to find module communication configuration errors. Signed-off-by: Zhang Chen --- net/colo-compare.c | 41 ++++++++++++++--------------------------- qemu-options.hx | 5 ++--- 2 files changed, 16 insertions(+), 30 deletions(-) diff --git a/net/colo-compare.c b/net/colo-compare.c index b100e7b51f..ecb21917c6 100644 --- a/net/colo-compare.c +++ b/net/colo-compare.c @@ -119,7 +119,7 @@ struct CompareState { SocketReadState notify_rs; SendCo out_sendco; SendCo notify_sendco; - bool vnet_hdr; + int local_vnet_hdr_len; uint64_t compare_timeout; uint32_t expired_scan_cycle; =20 @@ -725,7 +725,6 @@ static void colo_compare_connection(void *opaque, void = *user_data) static void coroutine_fn _compare_chr_send(void *opaque) { SendCo *sendco =3D opaque; - CompareState *s =3D sendco->s; int ret =3D 0; =20 while (!g_queue_is_empty(&sendco->send_list)) { @@ -740,7 +739,7 @@ static void coroutine_fn _compare_chr_send(void *opaque) goto err; } =20 - if (!sendco->notify_remote_frame && s->vnet_hdr) { + if (!sendco->notify_remote_frame) { /* * We send vnet header len make other module(like filter-redir= ector) * know how to parse net packet correctly. @@ -1034,22 +1033,6 @@ static void compare_set_outdev(Object *obj, const ch= ar *value, Error **errp) s->outdev =3D g_strdup(value); } =20 -static bool compare_get_vnet_hdr(Object *obj, Error **errp) -{ - CompareState *s =3D COLO_COMPARE(obj); - - return s->vnet_hdr; -} - -static void compare_set_vnet_hdr(Object *obj, - bool value, - Error **errp) -{ - CompareState *s =3D COLO_COMPARE(obj); - - s->vnet_hdr =3D value; -} - static char *compare_get_notify_dev(Object *obj, Error **errp) { CompareState *s =3D COLO_COMPARE(obj); @@ -1157,6 +1140,9 @@ static void compare_pri_rs_finalize(SocketReadState *= pri_rs) CompareState *s =3D container_of(pri_rs, CompareState, pri_rs); Connection *conn =3D NULL; =20 + /* Update colo-compare local vnet_hdr_len */ + s->local_vnet_hdr_len =3D pri_rs->vnet_hdr_len; + if (packet_enqueue(s, PRIMARY_IN, &conn)) { trace_colo_compare_main("primary: unsupported packet in"); compare_chr_send(s, @@ -1176,6 +1162,12 @@ static void compare_sec_rs_finalize(SocketReadState = *sec_rs) CompareState *s =3D container_of(sec_rs, CompareState, sec_rs); Connection *conn =3D NULL; =20 + /* Check the secondary vnet_hdr_len */ + if (s->local_vnet_hdr_len !=3D sec_rs->vnet_hdr_len) { + error_report("colo-compare got a different packet vnet_hdr_len" + " from local, please check the nodes -device configuration"); + } + if (packet_enqueue(s, SECONDARY_IN, &conn)) { trace_colo_compare_main("secondary: unsupported packet in"); } else { @@ -1289,8 +1281,8 @@ static void colo_compare_complete(UserCreatable *uc, = Error **errp) return; } =20 - net_socket_rs_init(&s->pri_rs, compare_pri_rs_finalize, s->vnet_hdr); - net_socket_rs_init(&s->sec_rs, compare_sec_rs_finalize, s->vnet_hdr); + net_socket_rs_init(&s->pri_rs, compare_pri_rs_finalize, true); + net_socket_rs_init(&s->sec_rs, compare_sec_rs_finalize, true); =20 /* Try to enable remote notify chardev, currently just for Xen COLO */ if (s->notify_dev) { @@ -1299,8 +1291,7 @@ static void colo_compare_complete(UserCreatable *uc, = Error **errp) return; } =20 - net_socket_rs_init(&s->notify_rs, compare_notify_rs_finalize, - s->vnet_hdr); + net_socket_rs_init(&s->notify_rs, compare_notify_rs_finalize, fals= e); } =20 s->out_sendco.s =3D s; @@ -1396,10 +1387,6 @@ static void colo_compare_init(Object *obj) object_property_add(obj, "max_queue_size", "uint32", get_max_queue_size, set_max_queue_size, NULL, NULL); - - s->vnet_hdr =3D false; - object_property_add_bool(obj, "vnet_hdr_support", compare_get_vnet_hdr, - compare_set_vnet_hdr); } =20 void colo_compare_cleanup(void) diff --git a/qemu-options.hx b/qemu-options.hx index 6d3b7ab8a0..c966035b4b 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -4976,15 +4976,14 @@ SRST stored. The file format is libpcap, so it can be analyzed with tools such as tcpdump or Wireshark. =20 - ``-object colo-compare,id=3Did,primary_in=3Dchardevid,secondary_in=3Dc= hardevid,outdev=3Dchardevid,iothread=3Did[,vnet_hdr_support][,notify_dev=3D= id][,compare_timeout=3D@var{ms}][,expired_scan_cycle=3D@var{ms}][,max_queue= _size=3D@var{size}]`` + ``-object colo-compare,id=3Did,primary_in=3Dchardevid,secondary_in=3Dc= hardevid,outdev=3Dchardevid,iothread=3Did[,notify_dev=3Did][,compare_timeou= t=3D@var{ms}][,expired_scan_cycle=3D@var{ms}][,max_queue_size=3D@var{size}]= `` Colo-compare gets packet from primary\_in chardevid and secondary\_in, then compare whether the payload of primary packet and secondary packet are the same. If same, it will output primary packet to out\_dev, else it will notify COLO-framework to = do checkpoint and send primary packet to out\_dev. In order to improve efficiency, we need to put the task of comparison in - another iothread. If it has the vnet\_hdr\_support flag, - colo compare will send/recv packet with vnet\_hdr\_len. + another iothread. colo compare will send/recv packet with vnet\_hd= r\_len. The compare\_timeout=3D@var{ms} determines the maximum time of the colo-compare hold the packet. The expired\_scan\_cycle=3D@var{ms} is to set the period of scanning expired primary node network pack= ets. --=20 2.25.1