From patchwork Tue Jun 6 08:12:55 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhang Chen X-Patchwork-Id: 771689 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3whkyK3byRz9s0Z for ; Tue, 6 Jun 2017 18:15:21 +1000 (AEST) Received: from localhost ([::1]:36756 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dI9e3-00049R-4K for incoming@patchwork.ozlabs.org; Tue, 06 Jun 2017 04:15:19 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50607) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dI9dZ-00047X-KT for qemu-devel@nongnu.org; Tue, 06 Jun 2017 04:14:50 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dI9dY-0002U8-Ll for qemu-devel@nongnu.org; Tue, 06 Jun 2017 04:14:49 -0400 Received: from [59.151.112.132] (port=48485 helo=heian.cn.fujitsu.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dI9dX-0002TW-O3 for qemu-devel@nongnu.org; Tue, 06 Jun 2017 04:14:48 -0400 X-IronPort-AV: E=Sophos;i="5.22,518,1449504000"; d="scan'208";a="19708293" Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 06 Jun 2017 16:14:30 +0800 Received: from G08CNEXCHPEKD02.g08.fujitsu.local (unknown [10.167.33.83]) by cn.fujitsu.com (Postfix) with ESMTP id 31F7E47C7C61; Tue, 6 Jun 2017 16:14:27 +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; Tue, 6 Jun 2017 16:14:25 +0800 From: Zhang Chen To: qemu devel , Jason Wang Date: Tue, 6 Jun 2017 16:12:55 +0800 Message-ID: <1496736776-19852-3-git-send-email-zhangchen.fnst@cn.fujitsu.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1496736776-19852-1-git-send-email-zhangchen.fnst@cn.fujitsu.com> References: <1496736776-19852-1-git-send-email-zhangchen.fnst@cn.fujitsu.com> MIME-Version: 1.0 X-Originating-IP: [10.167.226.56] X-yoursite-MailScanner-ID: 31F7E47C7C61.AF8DE 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 V3 2/3] COLO-compare: Add remote checkpoint notify chardev socket handler frame 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 , Zhang Chen Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Add chardev handler to get remote colo-frame's notify, Xen colo is the first user. Signed-off-by: Zhang Chen --- net/colo-compare.c | 39 +++++++++++++++++++++++++++++++++++++-- 1 file changed, 37 insertions(+), 2 deletions(-) diff --git a/net/colo-compare.c b/net/colo-compare.c index 6f8c439..10a328e 100644 --- a/net/colo-compare.c +++ b/net/colo-compare.c @@ -72,8 +72,10 @@ typedef struct CompareState { CharBackend chr_pri_in; CharBackend chr_sec_in; CharBackend chr_out; + CharBackend chr_notify_dev; SocketReadState pri_rs; SocketReadState sec_rs; + SocketReadState notify_rs; /* connection list: the connections belonged to this NIC could be found * in this list. @@ -567,6 +569,19 @@ static void compare_sec_chr_in(void *opaque, const uint8_t *buf, int size) } } +static void compare_notify_chr(void *opaque, const uint8_t *buf, int size) +{ + CompareState *s = COLO_COMPARE(opaque); + int ret; + + ret = net_fill_rstate(&s->notify_rs, buf, size); + if (ret == -1) { + qemu_chr_fe_set_handlers(&s->chr_notify_dev, NULL, NULL, NULL, + NULL, NULL, true); + error_report("colo-compare notify_dev error"); + } +} + /* * Check old packet regularly so it can watch for any packets * that the secondary hasn't produced equivalents of. @@ -589,9 +604,14 @@ static void *colo_compare_thread(void *opaque) s->worker_context = g_main_context_new(); qemu_chr_fe_set_handlers(&s->chr_pri_in, compare_chr_can_read, - compare_pri_chr_in, NULL, s, s->worker_context, true); + compare_pri_chr_in, NULL, s, + s->worker_context, true); qemu_chr_fe_set_handlers(&s->chr_sec_in, compare_chr_can_read, - compare_sec_chr_in, NULL, s, s->worker_context, true); + compare_sec_chr_in, NULL, s, + s->worker_context, true); + qemu_chr_fe_set_handlers(&s->chr_notify_dev, compare_chr_can_read, + compare_notify_chr, NULL, s, + s->worker_context, true); s->compare_loop = g_main_loop_new(s->worker_context, FALSE); @@ -694,6 +714,10 @@ static void compare_sec_rs_finalize(SocketReadState *sec_rs) } } +static void compare_notify_rs_finalize(SocketReadState *notify_rs) +{ + /* Get remote colo-frame's notify and handle the message */ +} /* * Return 0 is success. @@ -757,6 +781,15 @@ static void colo_compare_complete(UserCreatable *uc, Error **errp) return; } + /* This parameter is Optional, Remote checkpoint notify need it */ + if (s->notify_dev) { + if (find_and_check_chardev(&chr, s->notify_dev, errp) || + !qemu_chr_fe_init(&s->chr_notify_dev, chr, errp)) { + return; + } + net_socket_rs_init(&s->notify_rs, compare_notify_rs_finalize); + } + net_socket_rs_init(&s->pri_rs, compare_pri_rs_finalize); net_socket_rs_init(&s->sec_rs, compare_sec_rs_finalize); @@ -825,6 +858,7 @@ static void colo_compare_finalize(Object *obj) qemu_chr_fe_set_handlers(&s->chr_sec_in, NULL, NULL, NULL, NULL, s->worker_context, true); qemu_chr_fe_deinit(&s->chr_out); + qemu_chr_fe_deinit(&s->chr_notify_dev); g_main_loop_quit(s->compare_loop); qemu_thread_join(&s->thread); @@ -839,6 +873,7 @@ static void colo_compare_finalize(Object *obj) g_free(s->sec_indev); g_free(s->outdev); g_free(s->notify_dev); + } static const TypeInfo colo_compare_info = {