From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.7 required=3.0 tests=FROM_WSP_TRAIL, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 02939C2BA19 for ; Sat, 11 Apr 2020 03:48:51 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C75892087E for ; Sat, 11 Apr 2020 03:48:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C75892087E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:48346 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jN78T-0000mN-OZ for qemu-devel@archiver.kernel.org; Fri, 10 Apr 2020 23:48:49 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:45016) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jN77k-0008HU-GN for qemu-devel@nongnu.org; Fri, 10 Apr 2020 23:48:05 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jN77i-0004iJ-T1 for qemu-devel@nongnu.org; Fri, 10 Apr 2020 23:48:04 -0400 Received: from mga18.intel.com ([134.134.136.126]:21814) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1jN77i-0004dC-LG for qemu-devel@nongnu.org; Fri, 10 Apr 2020 23:48:02 -0400 IronPort-SDR: UmaOYiwJDWlmgCAMY29YowU/lMIxJjIhwswUyS3S/AGNRekUEGT3p+8PhnwcepDnSroET6T1tW XGrRmpAS8v/Q== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Apr 2020 20:47:54 -0700 IronPort-SDR: AUpLOOfYT3rdJ3PWZE3Suzr/hsRNXleNudOXJ7f1bWKmxzKybPKIezLLz8ocRcxtWBRdTjKxxE wALHplis7E6A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.72,368,1580803200"; d="scan'208";a="276368261" Received: from unknown (HELO localhost.localdomain) ([10.239.13.19]) by fmsmga004.fm.intel.com with ESMTP; 10 Apr 2020 20:47:53 -0700 From: Zhang Chen To: Jason Wang , qemu-dev Subject: [PATCH 1/2] net/colo-compare.c: Expose compare "max_queue_size" to users Date: Sat, 11 Apr 2020 11:38:23 +0800 Message-Id: <20200411033824.19389-2-chen.zhang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200411033824.19389-1-chen.zhang@intel.com> References: <20200411033824.19389-1-chen.zhang@intel.com> X-detected-operating-system: by eggs.gnu.org: FreeBSD 9.x [fuzzy] X-Received-From: 134.134.136.126 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 , Zhang Chen Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" 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 10c0239f9d..def60ff2ea 100644 --- a/net/colo-compare.c +++ b/net/colo-compare.c @@ -54,6 +54,7 @@ static NotifierList colo_compare_notifiers = static QemuMutex event_mtx; static QemuCond event_complete_cond; static int event_unhandled_count; +static uint32_t max_queue_size; /* * + CompareState ++ @@ -193,7 +194,7 @@ static void fill_pkt_tcp_info(void *data, uint32_t *max_ack) */ static int colo_insert_packet(GQueue *queue, Packet *pkt, uint32_t *max_ack) { - if (g_queue_get_length(queue) <= MAX_QUEUE_SIZE) { + if (g_queue_get_length(queue) <= max_queue_size) { if (pkt->ip->ip_p == IPPROTO_TCP) { fill_pkt_tcp_info(pkt, max_ack); g_queue_insert_sorted(queue, @@ -1051,6 +1052,37 @@ out: error_propagate(errp, local_err); } +static void get_max_queue_size(Object *obj, Visitor *v, + const char *name, void *opaque, + Error **errp) +{ + uint32_t value = 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 = 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 = value; + +out: + error_propagate(errp, local_err); +} + static void compare_pri_rs_finalize(SocketReadState *pri_rs) { CompareState *s = container_of(pri_rs, CompareState, pri_rs); @@ -1167,6 +1199,11 @@ static void colo_compare_complete(UserCreatable *uc, Error **errp) s->expired_scan_cycle = REGULAR_PACKET_CHECK_MS; } + if (!max_queue_size) { + /* Set default queue size to 1024 */ + max_queue_size = MAX_QUEUE_SIZE; + } + if (find_and_check_chardev(&chr, s->pri_indev, errp) || !qemu_chr_fe_init(&s->chr_pri_in, chr, errp)) { return; @@ -1270,6 +1307,10 @@ static void colo_compare_init(Object *obj) compare_get_expired_scan_cycle, compare_set_expired_scan_cycle, NULL, NULL, NULL); + object_property_add(obj, "max_queue_size", "uint32", + get_max_queue_size, + set_max_queue_size, NULL, NULL, NULL); + s->vnet_hdr = false; object_property_add_bool(obj, "vnet_hdr_support", compare_get_vnet_hdr, compare_set_vnet_hdr, NULL); diff --git a/qemu-options.hx b/qemu-options.hx index 16debd03cb..107ff3e71b 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -4615,7 +4615,7 @@ SRST stored. The file format is libpcap, so it can be analyzed with tools such as tcpdump or Wireshark. - ``-object colo-compare,id=id,primary_in=chardevid,secondary_in=chardevid,outdev=chardevid,iothread=id[,vnet_hdr_support][,notify_dev=id][,compare_timeout=@var{ms}][,expired_scan_cycle=@var{ms}`` + ``-object colo-compare,id=id,primary_in=chardevid,secondary_in=chardevid,outdev=chardevid,iothread=id[,vnet_hdr_support][,notify_dev=id][,compare_timeout=@var{ms}][,expired_scan_cycle=@var{ms}][,max_queue_size=@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 @@ -4627,7 +4627,8 @@ SRST vnet\_hdr\_len. Then compare\_timeout=@var{ms} determines the maximum delay colo-compare wait for the packet. The expired\_scan\_cycle=@var{ms} to set the period of scanning - expired primary node network packets. + expired primary node network packets. The max\_queue\_size=@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. -- 2.17.1