From nobody Sun Feb 23 11:43:05 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail header.i=@fujitsu.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=pass(p=none dis=none) header.from=nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1740119800; cv=none; d=zohomail.com; s=zohoarc; b=fX8utJwwqVZlutSjvs53Fg/jZ+jReGwST7xnfMZkvxLA1TChIerBGKAKWEjwcc4tDNKPb21KkGq4If9oFq0mbt9Ipx3ff07Wjc+iISvdfCZUpKZvFy1zD6GxE7jaJapentUckfqvU15CVD1qiXdv4rbw1jiIQiLucxvrxsFTpsM= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1740119800; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Reply-To:Reply-To:References:Sender:Subject:Subject:To:To:Message-Id; bh=FmhHaBuVvEu3RyjumFvTAnQouan2bTwqTmsgEZe5CJ0=; b=ZCPDj9XcQd3fpIENw60R7vdZFOODvRt7mhPlxHH4t8RMtu3R+EmA9FZ6gA2KHL3kCk1+MoHumAG4Uy9m1nsfMyOYYTSkNFFfihAMwwJ1Zr35qNTM9HBtvC65prrRxKaRD6yO1fkKhQY+q1EEW4fE+QEXx5wmzpaynky9ifVkR9U= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail header.i=@fujitsu.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=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1740119800062521.7847524480386; Thu, 20 Feb 2025 22:36:40 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tlMd7-0001UG-R3; Fri, 21 Feb 2025 01:35:21 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tlMd3-0001RA-B4 for qemu-devel@nongnu.org; Fri, 21 Feb 2025 01:35:17 -0500 Received: from esa12.hc1455-7.c3s2.iphmx.com ([139.138.37.100]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tlMd1-0003jz-6b for qemu-devel@nongnu.org; Fri, 21 Feb 2025 01:35:17 -0500 Received: from unknown (HELO yto-r1.gw.nic.fujitsu.com) ([218.44.52.217]) by esa12.hc1455-7.c3s2.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Feb 2025 15:35:07 +0900 Received: from yto-m3.gw.nic.fujitsu.com (yto-nat-yto-m3.gw.nic.fujitsu.com [192.168.83.66]) by yto-r1.gw.nic.fujitsu.com (Postfix) with ESMTP id 5A81DD6EAD for ; Fri, 21 Feb 2025 15:35:05 +0900 (JST) Received: from edo.cn.fujitsu.com (edo.cn.fujitsu.com [10.167.33.5]) by yto-m3.gw.nic.fujitsu.com (Postfix) with ESMTP id 22AFA17D1C for ; Fri, 21 Feb 2025 15:35:05 +0900 (JST) Received: from iaas-rdma.. (unknown [10.167.135.44]) by edo.cn.fujitsu.com (Postfix) with ESMTP id 83EF71A006C; Fri, 21 Feb 2025 14:35:04 +0800 (CST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=fujitsu.com; i=@fujitsu.com; q=dns/txt; s=fj2; t=1740119715; x=1771655715; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=23C5J9GjiTBVLzzFhi4s9G3Cy0DKVtnCKHfbmfdFK7M=; b=YW3o+ZSC7bKtSrZYxrCHmu8YWI2Ah3LHPuArC37paSfg+6lZcap3eo7s x87x/5RQ659RHOqI7Pu01chIRKueCZhVkUCq0EtGSpbaGC4LpTy3RspqC pwN9YoFQd20ZIVhvSeQcBw4Het0UiGhrYOueudvbic8qp5P4QOnezCfFW EfV9t0VBkJCcYCgL4mjpRZWGDdI20UNvWSiw7CR25bcTWLkniSl/o9Dty DTzgzDtlV6O7a+Bhuq9PMug/FgR1VPgRvRoVJ3Nd3TTRfqB1UN5VZ9ter c0fXC7JMWHrP/gjcgaHxNilGzuvymKUl0nDKm7cwniywY8X8aQ/bxj3MA Q==; X-CSE-ConnectionGUID: syoDI4VORyyAmE44My2plw== X-CSE-MsgGUID: 8REujhPOSuS22j2CIkhA7w== X-IronPort-AV: E=McAfee;i="6700,10204,11351"; a="169689017" X-IronPort-AV: E=Sophos;i="6.13,303,1732546800"; d="scan'208";a="169689017" To: qemu-devel@nongnu.org Cc: Peter Xu , Fabiano Rosas , Laurent Vivier , Paolo Bonzini , Li Zhijian Subject: [PATCH v2 3/8] migration: Kill RAM_SAVE_CONTROL_NOT_SUPP Date: Fri, 21 Feb 2025 14:36:07 +0800 Message-ID: <20250221063612.695909-4-lizhijian@fujitsu.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20250221063612.695909-1-lizhijian@fujitsu.com> References: <20250221063612.695909-1-lizhijian@fujitsu.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=139.138.37.100; envelope-from=lizhijian@fujitsu.com; helo=esa12.hc1455-7.c3s2.iphmx.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_PASS=-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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-to: Li Zhijian From: Li Zhijian via Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1740119802244019000 Content-Type: text/plain; charset="utf-8" Refactor the migration control logic by eliminating the `RAM_SAVE_CONTROL_NOT_SUPP` return value within the migration codebase. This involves moving the checks for RDMA migration status and postcopy state from rdma_control_save_page() to control_save_page() With this change, control_save_page() now takes responsibility for determining whether RDMA operations can proceed, based on the state of migration. Signed-off-by: Li Zhijian --- migration/ram.c | 19 ++++++++++--------- migration/rdma.c | 4 +--- migration/rdma.h | 3 +-- 3 files changed, 12 insertions(+), 14 deletions(-) diff --git a/migration/ram.c b/migration/ram.c index 424df6d9f13..b7157b9b175 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -1155,18 +1155,19 @@ static bool control_save_page(PageSearchStatus *pss, { int ret; =20 - ret =3D rdma_control_save_page(pss->pss_channel, pss->block->offset, o= ffset, - TARGET_PAGE_SIZE); - if (ret =3D=3D RAM_SAVE_CONTROL_NOT_SUPP) { - return false; - } + if (migrate_rdma() && !migration_in_postcopy()) { + ret =3D rdma_control_save_page(pss->pss_channel, pss->block->offse= t, + offset, TARGET_PAGE_SIZE); =20 - if (ret =3D=3D RAM_SAVE_CONTROL_DELAYED) { - *pages =3D 1; + if (ret =3D=3D RAM_SAVE_CONTROL_DELAYED) { + *pages =3D 1; + } else { + *pages =3D ret; + } return true; } - *pages =3D ret; - return true; + + return false; } =20 /* diff --git a/migration/rdma.c b/migration/rdma.c index af8e6234a9f..c6876347e1e 100644 --- a/migration/rdma.c +++ b/migration/rdma.c @@ -3284,9 +3284,7 @@ err: int rdma_control_save_page(QEMUFile *f, ram_addr_t block_offset, ram_addr_t offset, size_t size) { - if (!migrate_rdma() || migration_in_postcopy()) { - return RAM_SAVE_CONTROL_NOT_SUPP; - } + assert(migrate_rdma()); =20 int ret =3D qemu_rdma_save_page(f, block_offset, offset, size); =20 diff --git a/migration/rdma.h b/migration/rdma.h index f55f28bbed1..8eeb0117b91 100644 --- a/migration/rdma.h +++ b/migration/rdma.h @@ -33,7 +33,6 @@ void rdma_start_incoming_migration(InetSocketAddress *hos= t_port, Error **errp); #define RAM_CONTROL_ROUND 1 #define RAM_CONTROL_FINISH 3 =20 -#define RAM_SAVE_CONTROL_NOT_SUPP -1000 #define RAM_SAVE_CONTROL_DELAYED -2000 =20 #ifdef CONFIG_RDMA @@ -56,7 +55,7 @@ static inline int rdma_control_save_page(QEMUFile *f, ram_addr_t block_offset, ram_addr_t offset, size_t size) { - return RAM_SAVE_CONTROL_NOT_SUPP; + g_assert_not_reached(); } #endif #endif --=20 2.44.0