From nobody Tue Feb 10 03:16:17 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.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 ARC-Seal: i=1; a=rsa-sha256; t=1612338814; cv=none; d=zohomail.com; s=zohoarc; b=n225RQXD/EcNYRUJrMY5vRYCLaDYNmN9cvie7mpjsdmpvZp2VRbkSjeHHelIPlY55wTaJb1syVnDJRCNy7H44xJ5K6eI/1ouCRX56nm8NVmq7ESUFQ9iBa00cweTBmlrueG/B62gr7u3Sd25WWgvJE0VRO4vey6yTq6AE5cY5Vc= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1612338814; h=Content-Type:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=FzhmbC5NV7+Q1YwxsoEpWlkIWVu/W6XpAVmpOj1XjNg=; b=JGthL4QsAw2wEa4GTP+py4Mb29E2o+8BHYS94qafagy0wQEDOABfl/oBwk+goBumHDbyA2d+MvxpP7go1oNWBEp+Krx5KxLDltNYwz3MOeSWQzChVaMNkJLxYTqw72zClC9uWyvmACGFhQmCS8iylg4I8Qti/ROe/8T0YN9xaA0= ARC-Authentication-Results: i=1; mx.zohomail.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 Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1612338814317441.6566736872019; Tue, 2 Feb 2021 23:53:34 -0800 (PST) Received: from localhost ([::1]:55584 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l7Cyj-0006tz-5l for importer@patchew.org; Wed, 03 Feb 2021 02:53:33 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:34320) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l7Cpk-00037v-EK for qemu-devel@nongnu.org; Wed, 03 Feb 2021 02:44:16 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:3477) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l7Cpi-0008Ma-0h for qemu-devel@nongnu.org; Wed, 03 Feb 2021 02:44:16 -0500 Received: from DGGEMS411-HUB.china.huawei.com (unknown [172.30.72.58]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4DVtv06kvFzjJgj; Wed, 3 Feb 2021 15:42:36 +0800 (CST) Received: from huawei.com (10.175.101.6) by DGGEMS411-HUB.china.huawei.com (10.3.19.211) with Microsoft SMTP Server id 14.3.498.0; Wed, 3 Feb 2021 15:43:42 +0800 From: Chuan Zheng To: , , Subject: [PATCH v4 10/18] migration/rdma: Create the multifd recv channels for RDMA Date: Wed, 3 Feb 2021 16:01:43 +0800 Message-ID: <1612339311-114805-11-git-send-email-zhengchuan@huawei.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1612339311-114805-1-git-send-email-zhengchuan@huawei.com> References: <1612339311-114805-1-git-send-email-zhengchuan@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.101.6] X-CFilter-Loop: Reflected Received-SPF: pass (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=45.249.212.191; envelope-from=zhengchuan@huawei.com; helo=szxga05-in.huawei.com 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_H2=-0.001, SPF_HELO_NONE=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, qemu-devel@nongnu.org, xiexiangyou@huawei.com, alex.chen@huawei.com, wanghao232@huawei.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" We still don't transmit anything through them, and we only build the RDMA connections. Signed-off-by: Zhimin Feng Signed-off-by: Chuan Zheng --- migration/rdma.c | 69 ++++++++++++++++++++++++++++++++++++++++++++++++++++= ++-- 1 file changed, 67 insertions(+), 2 deletions(-) diff --git a/migration/rdma.c b/migration/rdma.c index 996afb0..ed8a015 100644 --- a/migration/rdma.c +++ b/migration/rdma.c @@ -3267,6 +3267,40 @@ static void rdma_cm_poll_handler(void *opaque) } } =20 +static bool qemu_rdma_accept_setup(RDMAContext *rdma) +{ + RDMAContext *multifd_rdma =3D NULL; + int thread_count; + int i; + MultiFDRecvParams *multifd_recv_param; + thread_count =3D migrate_multifd_channels(); + /* create the multifd channels for RDMA */ + for (i =3D 0; i < thread_count; i++) { + if (get_multifd_recv_param(i, &multifd_recv_param) < 0) { + error_report("rdma: error getting multifd_recv_param(%d)", i); + return false; + } + + multifd_rdma =3D (RDMAContext *) multifd_recv_param->rdma; + if (multifd_rdma->cm_id =3D=3D NULL) { + break; + } else { + multifd_rdma =3D NULL; + } + } + + if (multifd_rdma) { + qemu_set_fd_handler(rdma->channel->fd, + rdma_accept_incoming_migration, + NULL, (void *)(intptr_t)multifd_rdma); + } else { + qemu_set_fd_handler(rdma->channel->fd, rdma_cm_poll_handler, + NULL, rdma); + } + + return true; +} + static int qemu_rdma_accept(RDMAContext *rdma) { RDMACapabilities cap; @@ -3366,6 +3400,10 @@ static int qemu_rdma_accept(RDMAContext *rdma) qemu_set_fd_handler(rdma->channel->fd, rdma_accept_incoming_migrat= ion, NULL, (void *)(intptr_t)rdma->return_path); + } else if (migrate_use_multifd()) { + if (!qemu_rdma_accept_setup(rdma)) { + goto err_rdma_dest_wait; + } } else { qemu_set_fd_handler(rdma->channel->fd, rdma_cm_poll_handler, NULL, rdma); @@ -3976,6 +4014,34 @@ static QEMUFile *qemu_fopen_rdma(RDMAContext *rdma, = const char *mode) return rioc->file; } =20 +static void migration_rdma_process_incoming(QEMUFile *f, + RDMAContext *rdma, Error **err= p) +{ + MigrationIncomingState *mis =3D migration_incoming_get_current(); + QIOChannel *ioc =3D NULL; + bool start_migration =3D false; + + if (!migrate_use_multifd()) { + rdma->migration_started_on_destination =3D 1; + migration_fd_process_incoming(f, errp); + return; + } + + if (!mis->from_src_file) { + mis->from_src_file =3D f; + qemu_file_set_blocking(f, false); + } else { + ioc =3D QIO_CHANNEL(getQIOChannel(f)); + /* Multiple connections */ + assert(migrate_use_multifd()); + start_migration =3D multifd_recv_new_channel(ioc, errp); + } + + if (start_migration) { + migration_incoming_process(); + } +} + static void rdma_accept_incoming_migration(void *opaque) { RDMAContext *rdma =3D opaque; @@ -4004,8 +4070,7 @@ static void rdma_accept_incoming_migration(void *opaq= ue) return; } =20 - rdma->migration_started_on_destination =3D 1; - migration_fd_process_incoming(f, &local_err); + migration_rdma_process_incoming(f, rdma, &local_err); if (local_err) { error_reportf_err(local_err, "RDMA ERROR:"); } --=20 1.8.3.1