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Thu, 13 Feb 2020 04:38:25 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1j2Awx-0004zF-Sh for qemu-devel@nongnu.org; Thu, 13 Feb 2020 04:38:24 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:2766 helo=huawei.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1j2Awx-0004qA-Gp for qemu-devel@nongnu.org; Thu, 13 Feb 2020 04:38:23 -0500 Received: from DGGEMS404-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id A33F81D81F85C3A487B6; Thu, 13 Feb 2020 17:38:15 +0800 (CST) Received: from huawei.com (10.173.220.198) by DGGEMS404-HUB.china.huawei.com (10.3.19.204) with Microsoft SMTP Server id 14.3.439.0; Thu, 13 Feb 2020 17:38:08 +0800 From: Zhimin Feng To: , , , Subject: [PATCH RFC 02/14] migration: judge whether or not the RDMA is used for migration Date: Thu, 13 Feb 2020 17:37:43 +0800 Message-ID: <20200213093755.370-3-fengzhimin1@huawei.com> X-Mailer: git-send-email 2.24.0.windows.2 In-Reply-To: <20200213093755.370-1-fengzhimin1@huawei.com> References: <20200213093755.370-1-fengzhimin1@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.173.220.198] X-CFilter-Loop: Reflected Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 45.249.212.191 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: jemmy858585@gmail.com, Zhimin Feng , qemu-devel@nongnu.org, zhang.zhanghailiang@huawei.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" Signed-off-by: Zhimin Feng --- migration/migration.c | 10 ++++++++++ migration/migration.h | 1 + 2 files changed, 11 insertions(+) diff --git a/migration/migration.c b/migration/migration.c index 10a13e0c79..819089a7ea 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -107,6 +107,7 @@ static NotifierList migration_state_notifiers =3D NOTIFIER_LIST_INITIALIZER(migration_state_notifiers); =20 static bool deferred_incoming; +static bool enabled_rdma_migration; =20 /* Messages sent on the return path from destination to source */ enum mig_rp_message_type { @@ -354,6 +355,7 @@ void migrate_add_address(SocketAddress *address) void qemu_start_incoming_migration(const char *uri, Error **errp) { const char *p; + enabled_rdma_migration =3D false; =20 qapi_event_send_migration(MIGRATION_STATUS_SETUP); if (!strcmp(uri, "defer")) { @@ -362,6 +364,7 @@ void qemu_start_incoming_migration(const char *uri, Err= or **errp) tcp_start_incoming_migration(p, errp); #ifdef CONFIG_RDMA } else if (strstart(uri, "rdma:", &p)) { + enabled_rdma_migration =3D true; rdma_start_incoming_migration(p, errp); #endif } else if (strstart(uri, "exec:", &p)) { @@ -1982,6 +1985,7 @@ void qmp_migrate(const char *uri, bool has_blk, bool = blk, Error *local_err =3D NULL; MigrationState *s =3D migrate_get_current(); const char *p; + enabled_rdma_migration =3D false; =20 if (!migrate_prepare(s, has_blk && blk, has_inc && inc, has_resume && resume, errp)) { @@ -1993,6 +1997,7 @@ void qmp_migrate(const char *uri, bool has_blk, bool = blk, tcp_start_outgoing_migration(s, p, &local_err); #ifdef CONFIG_RDMA } else if (strstart(uri, "rdma:", &p)) { + enabled_rdma_migration =3D true; rdma_start_outgoing_migration(s, p, &local_err); #endif } else if (strstart(uri, "exec:", &p)) { @@ -2208,6 +2213,11 @@ bool migrate_use_events(void) return s->enabled_capabilities[MIGRATION_CAPABILITY_EVENTS]; } =20 +bool migrate_use_rdma(void) +{ + return enabled_rdma_migration; +} + bool migrate_use_rdma_pin_all(void) { MigrationState *s; diff --git a/migration/migration.h b/migration/migration.h index 50fc2693c7..9b37320d50 100644 --- a/migration/migration.h +++ b/migration/migration.h @@ -297,6 +297,7 @@ bool migrate_ignore_shared(void); bool migrate_validate_uuid(void); =20 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); --=20 2.19.1