From patchwork Wed Feb 3 08:01:49 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zheng Chuan X-Patchwork-Id: 12063645 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 E125EC433E6 for ; Wed, 3 Feb 2021 07:56:09 +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 A01D364F67 for ; Wed, 3 Feb 2021 07:56:08 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A01D364F67 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]:34874 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l7D1D-0001kZ-1d for qemu-devel@archiver.kernel.org; Wed, 03 Feb 2021 02:56:07 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:34358) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l7Cpn-0003FL-6P for qemu-devel@nongnu.org; Wed, 03 Feb 2021 02:44:19 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:3478) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l7Cpk-0008N7-7a for qemu-devel@nongnu.org; Wed, 03 Feb 2021 02:44:18 -0500 Received: from DGGEMS411-HUB.china.huawei.com (unknown [172.30.72.58]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4DVtv108PJzjJgW; Wed, 3 Feb 2021 15:42:37 +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 15:43:45 +0800 From: Chuan Zheng To: , , Subject: [PATCH v4 16/18] migration/rdma: add rdma_channel into Migrationstate field Date: Wed, 3 Feb 2021 16:01:49 +0800 Message-ID: <1612339311-114805-17-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 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Multifd RDMA is need to poll when we send data, record it. Signed-off-by: Chuan Zheng --- migration/migration.c | 1 + migration/migration.h | 1 + migration/rdma.c | 14 ++++++++++++++ 3 files changed, 16 insertions(+) diff --git a/migration/migration.c b/migration/migration.c index b8f4844..47bd11d 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -1926,6 +1926,7 @@ void migrate_init(MigrationState *s) s->migration_thread_running = false; s->enabled_rdma_migration = false; s->host_port = NULL; + s->rdma_channel = 0; error_free(s->error); s->error = NULL; s->hostname = NULL; diff --git a/migration/migration.h b/migration/migration.h index 537ee09..5ff46e6 100644 --- a/migration/migration.h +++ b/migration/migration.h @@ -288,6 +288,7 @@ struct MigrationState { /* Need by Multi-RDMA */ char *host_port; + int rdma_channel; }; void migrate_set_state(int *state, int old_state, int new_state); diff --git a/migration/rdma.c b/migration/rdma.c index f5eb563..2097839 100644 --- a/migration/rdma.c +++ b/migration/rdma.c @@ -183,6 +183,20 @@ typedef struct { } RDMAWorkRequestData; /* + * Get the multifd RDMA channel used to send data. + */ +static int get_multifd_RDMA_channel(void) +{ + int thread_count = migrate_multifd_channels(); + MigrationState *s = migrate_get_current(); + + s->rdma_channel++; + s->rdma_channel %= thread_count; + + return s->rdma_channel; +} + +/* * Negotiate RDMA capabilities during connection-setup time. */ typedef struct {