From patchwork Sat Oct 17 04:25:32 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zheng Chuan X-Patchwork-Id: 271085 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=-12.7 required=3.0 tests=BAYES_00, 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 4A068C43457 for ; Sat, 17 Oct 2020 04:18:58 +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 D2B4820791 for ; Sat, 17 Oct 2020 04:18:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D2B4820791 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:53096 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kTdgG-0008Tk-UT for qemu-devel@archiver.kernel.org; Sat, 17 Oct 2020 00:18:56 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:39936) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kTdXg-0005td-Ho for qemu-devel@nongnu.org; Sat, 17 Oct 2020 00:10:04 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:5239 helo=huawei.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kTdXe-0007Gb-DE for qemu-devel@nongnu.org; Sat, 17 Oct 2020 00:10:04 -0400 Received: from DGGEMS414-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id 7B63CD1119B5D6BEA59B; Sat, 17 Oct 2020 12:09:51 +0800 (CST) Received: from huawei.com (10.175.101.6) by DGGEMS414-HUB.china.huawei.com (10.3.19.214) with Microsoft SMTP Server id 14.3.487.0; Sat, 17 Oct 2020 12:09:41 +0800 From: Chuan Zheng To: , Subject: [PATCH v3 02/18] migration/rdma: judge whether or not the RDMA is used for migration Date: Sat, 17 Oct 2020 12:25:32 +0800 Message-ID: <1602908748-43335-3-git-send-email-zhengchuan@huawei.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1602908748-43335-1-git-send-email-zhengchuan@huawei.com> References: <1602908748-43335-1-git-send-email-zhengchuan@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.101.6] X-CFilter-Loop: Reflected Received-SPF: pass client-ip=45.249.212.191; envelope-from=zhengchuan@huawei.com; helo=huawei.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/17 00:09:47 X-ACL-Warn: Detected OS = Linux 3.11 and newer [fuzzy] X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: yubihong@huawei.com, zhang.zhanghailiang@huawei.com, fengzhimin1@huawei.com, qemu-devel@nongnu.org, xiexiangyou@huawei.com, alex.chen@huawei.com, wanghao232@huawei.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Add enabled_rdma_migration into MigrationState to judge whether or not the RDMA is used for migration. Signed-off-by: Zhimin Feng Signed-off-by: Chuan Zheng --- migration/migration.c | 13 +++++++++++++ migration/migration.h | 6 ++++++ 2 files changed, 19 insertions(+) diff --git a/migration/migration.c b/migration/migration.c index 64ae417..be6166a 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -389,7 +389,9 @@ void migrate_add_address(SocketAddress *address) void qemu_start_incoming_migration(const char *uri, Error **errp) { const char *p = NULL; + MigrationState *s = migrate_get_current(); + s->enabled_rdma_migration = false; qapi_event_send_migration(MIGRATION_STATUS_SETUP); if (!strcmp(uri, "defer")) { deferred_incoming_migration(errp); @@ -399,6 +401,7 @@ void qemu_start_incoming_migration(const char *uri, Error **errp) socket_start_incoming_migration(p ? p : uri, errp); #ifdef CONFIG_RDMA } else if (strstart(uri, "rdma:", &p)) { + s->enabled_rdma_migration = true; rdma_start_incoming_migration(p, errp); #endif } else if (strstart(uri, "exec:", &p)) { @@ -1887,6 +1890,7 @@ void migrate_init(MigrationState *s) s->start_postcopy = false; s->postcopy_after_devices = false; s->migration_thread_running = false; + s->enabled_rdma_migration = false; error_free(s->error); s->error = NULL; s->hostname = NULL; @@ -2115,6 +2119,7 @@ void qmp_migrate(const char *uri, bool has_blk, bool blk, socket_start_outgoing_migration(s, p ? p : uri, &local_err); #ifdef CONFIG_RDMA } else if (strstart(uri, "rdma:", &p)) { + s->enabled_rdma_migration = true; rdma_start_outgoing_migration(s, p, &local_err); #endif } else if (strstart(uri, "exec:", &p)) { @@ -2329,6 +2334,14 @@ bool migrate_use_events(void) return s->enabled_capabilities[MIGRATION_CAPABILITY_EVENTS]; } +bool migrate_use_rdma(void) +{ + MigrationState *s; + s = migrate_get_current(); + + return s->enabled_rdma_migration; +} + bool migrate_use_rdma_pin_all(void) { MigrationState *s; diff --git a/migration/migration.h b/migration/migration.h index 74fd790..e92eb29 100644 --- a/migration/migration.h +++ b/migration/migration.h @@ -264,6 +264,11 @@ struct MigrationState * This save hostname when out-going migration starts */ char *hostname; + + /* + * Enable RDMA migration + */ + bool enabled_rdma_migration; }; void migrate_set_state(int *state, int old_state, int new_state); @@ -300,6 +305,7 @@ bool migrate_ignore_shared(void); bool migrate_validate_uuid(void); bool migrate_auto_converge(void); +bool migrate_use_rdma(void); bool migrate_use_rdma_pin_all(void); bool migrate_use_multifd(void); bool migrate_pause_before_switchover(void);