From nobody Mon Feb 9 00:42:29 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 ARC-Seal: i=1; a=rsa-sha256; t=1592962444; cv=none; d=zohomail.com; s=zohoarc; b=BbSL51sHuMAt7NPIGazNEfTXx8y83iJURp1dPrKwabfq3uoav3E7KGYBav1M6L//haVK3CoA6uuJZmTb5CPuDiZfX8q9T6rRkQvr4eVvrTNRz4K0IEATUR+bxz7S5y7yS9rulJVLioQtbDTkPqQAL1fifDgIXukOTsPqQjr1NZ4= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1592962444; h=Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:Message-ID:References:Sender:Subject:To; bh=4DlBLW6Jo0vXYmJ4bEC7lA4GHDo0d7R/xx/Qy6ElUXI=; b=g2WjPRy/emqPVv8W6vgChXgErf2ZPYx/hK7r6iLc/deGxNdLiHFWAVoeh8J5TM3t5du8yVU+Pbn608CRbTTD5CxHLvB02mRSjKh1SGNd11xD2pauQApsfaP979RZzMhKYXStbVx4Pw6E653gkuE0oNfmgm3W1eqSjSJTwwQ4iZ0= ARC-Authentication-Results: i=1; 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 header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1592962444195755.4507741025722; Tue, 23 Jun 2020 18:34:04 -0700 (PDT) Received: from localhost ([::1]:45150 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jnuIc-0001VG-LI for importer@patchew.org; Tue, 23 Jun 2020 21:34:02 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:52028) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jnuGz-0000EQ-Qj for qemu-devel@nongnu.org; Tue, 23 Jun 2020 21:32:21 -0400 Received: from mga03.intel.com ([134.134.136.65]:58217) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jnuGx-0002af-AD for qemu-devel@nongnu.org; Tue, 23 Jun 2020 21:32:21 -0400 Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Jun 2020 18:32:14 -0700 Received: from unknown (HELO localhost.localdomain) ([10.239.13.19]) by fmsmga004.fm.intel.com with ESMTP; 23 Jun 2020 18:32:12 -0700 IronPort-SDR: LuR3P0MInfLU/J8JRRzRzfYJsD0yGjEwnLgS15mw/r4GKtJeRQ2nwn12vw+GQnxCWqF9dfue8H 2kAY6rkWJJ0g== X-IronPort-AV: E=McAfee;i="6000,8403,9661"; a="144319727" X-IronPort-AV: E=Sophos;i="5.75,273,1589266800"; d="scan'208";a="144319727" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False IronPort-SDR: VoDCI8H/nIAzDa+L1ilJIv3Jh9WOK+9LOqnTDOrbiA5SJoIi/Q6m2Bi9INrZ7OyBMNa3fmCsD6 3Pngvc01kDlQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,273,1589266800"; d="scan'208";a="301458055" From: Zhang Chen To: Jason Wang Subject: [PATCH V2 1/2] net/colo-compare.c: Expose compare "max_queue_size" to users Date: Wed, 24 Jun 2020 09:20:41 +0800 Message-Id: <20200624012042.29355-2-chen.zhang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200624012042.29355-1-chen.zhang@intel.com> References: <20200624012042.29355-1-chen.zhang@intel.com> 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=134.134.136.65; envelope-from=chen.zhang@intel.com; helo=mga03.intel.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/23 21:32:13 X-ACL-Warn: Detected OS = FreeBSD 9.x or newer [fuzzy] X-Spam_score_int: -38 X-Spam_score: -3.9 X-Spam_bar: --- X-Spam_report: (-3.9 / 5.0 requ) BAYES_00=-1.9, FROM_ADDR_WS=1, FROM_WSP_TRAIL=1, HEADER_FROM_DIFFERENT_DOMAINS=1, RCVD_IN_DNSWL_HI=-5, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN 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 , Zhang Chen Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Zhang Chen This patch allow users to set the "max_queue_size" according to their environment. Signed-off-by: Zhang Chen --- net/colo-compare.c | 43 ++++++++++++++++++++++++++++++++++++++++++- qemu-options.hx | 5 +++-- 2 files changed, 45 insertions(+), 3 deletions(-) diff --git a/net/colo-compare.c b/net/colo-compare.c index f15779dedc..ed9cf5d3c4 100644 --- a/net/colo-compare.c +++ b/net/colo-compare.c @@ -59,6 +59,7 @@ static bool colo_compare_active; static QemuMutex event_mtx; static QemuCond event_complete_cond; static int event_unhandled_count; +static uint32_t max_queue_size; =20 /* * + CompareState ++ @@ -222,7 +223,7 @@ static void fill_pkt_tcp_info(void *data, uint32_t *max= _ack) */ static int colo_insert_packet(GQueue *queue, Packet *pkt, uint32_t *max_ac= k) { - if (g_queue_get_length(queue) <=3D MAX_QUEUE_SIZE) { + if (g_queue_get_length(queue) <=3D max_queue_size) { if (pkt->ip->ip_p =3D=3D IPPROTO_TCP) { fill_pkt_tcp_info(pkt, max_ack); g_queue_insert_sorted(queue, @@ -1144,6 +1145,37 @@ out: error_propagate(errp, local_err); } =20 +static void get_max_queue_size(Object *obj, Visitor *v, + const char *name, void *opaque, + Error **errp) +{ + uint32_t value =3D max_queue_size; + + visit_type_uint32(v, name, &value, errp); +} + +static void set_max_queue_size(Object *obj, Visitor *v, + const char *name, void *opaque, + Error **errp) +{ + Error *local_err =3D NULL; + uint32_t value; + + visit_type_uint32(v, name, &value, &local_err); + if (local_err) { + goto out; + } + if (!value) { + error_setg(&local_err, "Property '%s.%s' requires a positive value= ", + object_get_typename(obj), name); + goto out; + } + max_queue_size =3D value; + +out: + error_propagate(errp, local_err); +} + static void compare_pri_rs_finalize(SocketReadState *pri_rs) { CompareState *s =3D container_of(pri_rs, CompareState, pri_rs); @@ -1261,6 +1293,11 @@ static void colo_compare_complete(UserCreatable *uc,= Error **errp) s->expired_scan_cycle =3D REGULAR_PACKET_CHECK_MS; } =20 + if (!max_queue_size) { + /* Set default queue size to 1024 */ + max_queue_size =3D MAX_QUEUE_SIZE; + } + if (find_and_check_chardev(&chr, s->pri_indev, errp) || !qemu_chr_fe_init(&s->chr_pri_in, chr, errp)) { return; @@ -1380,6 +1417,10 @@ static void colo_compare_init(Object *obj) compare_get_expired_scan_cycle, compare_set_expired_scan_cycle, NULL, NULL); =20 + 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); diff --git a/qemu-options.hx b/qemu-options.hx index 93bde2bbc8..3ee19a4b0d 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -4639,7 +4639,7 @@ 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}`` + ``-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}]`` Colo-compare gets packet from primary\_inchardevid and secondary\_inchardevid, than compare primary packet with secondary packet. If the packets are same, we will output @@ -4651,7 +4651,8 @@ SRST vnet\_hdr\_len. Then compare\_timeout=3D@var{ms} determines the maximum delay colo-compare wait for the packet. The expired\_scan\_cycle=3D@var{ms} to set the period of scanning - expired primary node network packets. + expired primary node network packets. The max\_queue\_size=3D@var{= size} + is to set the max compare queue size depend on user environment. If you want to use Xen COLO, will need the notify\_dev to notify Xen colo-frame to do checkpoint. =20 --=20 2.17.1