From patchwork Wed Oct 4 12:49:05 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Juan Quintela X-Patchwork-Id: 1843340 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4S0vkf1cLTz1yng for ; Wed, 4 Oct 2023 23:53:30 +1100 (AEDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qo1Jh-0004JA-7i; Wed, 04 Oct 2023 08:49:29 -0400 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 1qo1Jf-0004HK-3r for qemu-devel@nongnu.org; Wed, 04 Oct 2023 08:49:27 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qo1Jd-0006ku-5a for qemu-devel@nongnu.org; Wed, 04 Oct 2023 08:49:26 -0400 Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-650-LKQwVBWtNgGGzqbizK45-A-1; Wed, 04 Oct 2023 08:49:18 -0400 X-MC-Unique: LKQwVBWtNgGGzqbizK45-A-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.rdu2.redhat.com [10.11.54.8]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 62D5781D783; Wed, 4 Oct 2023 12:49:18 +0000 (UTC) Received: from secure.mitica (unknown [10.39.194.90]) by smtp.corp.redhat.com (Postfix) with ESMTP id 39B8BC154CB; Wed, 4 Oct 2023 12:49:17 +0000 (UTC) From: Juan Quintela To: qemu-devel@nongnu.org Cc: Li Zhijian , Juan Quintela , Peter Xu , Fabiano Rosas , Leonardo Bras Subject: [PATCH v2 02/10] migration/rdma: Unfold ram_control_before_iterate() Date: Wed, 4 Oct 2023 14:49:05 +0200 Message-ID: <20231004124913.16360-3-quintela@redhat.com> In-Reply-To: <20231004124913.16360-1-quintela@redhat.com> References: <20231004124913.16360-1-quintela@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.8 Received-SPF: pass client-ip=170.10.133.124; envelope-from=quintela@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Once there: - Remove unused data parameter - unfold it in its callers. - change all callers to call qemu_rdma_registration_start() - We need to call QIO_CHANNEL_RDMA() after we check for migrate_rdma() Reviewed-by: Peter Xu Signed-off-by: Juan Quintela Reviewed-by: Fabiano Rosas --- initilazize rioc after checknig that rdma is enabled. Signed-off-by: Juan Quintela --- migration/qemu-file.h | 2 -- migration/rdma.h | 7 +++++++ migration/qemu-file.c | 13 +------------ migration/ram.c | 16 +++++++++++++--- migration/rdma.c | 12 ++++-------- 5 files changed, 25 insertions(+), 25 deletions(-) diff --git a/migration/qemu-file.h b/migration/qemu-file.h index 03e718c264..d6a370c569 100644 --- a/migration/qemu-file.h +++ b/migration/qemu-file.h @@ -55,7 +55,6 @@ typedef int (QEMURamSaveFunc)(QEMUFile *f, size_t size); typedef struct QEMUFileHooks { - QEMURamHookFunc *before_ram_iterate; QEMURamHookFunc *after_ram_iterate; QEMURamHookFunc *hook_ram_load; QEMURamSaveFunc *save_page; @@ -127,7 +126,6 @@ void qemu_fflush(QEMUFile *f); void qemu_file_set_blocking(QEMUFile *f, bool block); int qemu_file_get_to_fd(QEMUFile *f, int fd, size_t size); -void ram_control_before_iterate(QEMUFile *f, uint64_t flags); void ram_control_after_iterate(QEMUFile *f, uint64_t flags); void ram_control_load_hook(QEMUFile *f, uint64_t flags, void *data); diff --git a/migration/rdma.h b/migration/rdma.h index de2ba09dc5..670c67a8cb 100644 --- a/migration/rdma.h +++ b/migration/rdma.h @@ -22,4 +22,11 @@ void rdma_start_outgoing_migration(void *opaque, const char *host_port, void rdma_start_incoming_migration(const char *host_port, Error **errp); + +#ifdef CONFIG_RDMA +int qemu_rdma_registration_start(QEMUFile *f, uint64_t flags); +#else +static inline +int qemu_rdma_registration_start(QEMUFile *f, uint64_t flags) { return 0; } +#endif #endif diff --git a/migration/qemu-file.c b/migration/qemu-file.c index 5e8207dae4..1a8170421f 100644 --- a/migration/qemu-file.c +++ b/migration/qemu-file.c @@ -32,6 +32,7 @@ #include "trace.h" #include "options.h" #include "qapi/error.h" +#include "rdma.h" #define IO_BUF_SIZE 32768 #define MAX_IOV_SIZE MIN_CONST(IOV_MAX, 64) @@ -288,18 +289,6 @@ void qemu_fflush(QEMUFile *f) f->iovcnt = 0; } -void ram_control_before_iterate(QEMUFile *f, uint64_t flags) -{ - int ret = 0; - - if (f->hooks && f->hooks->before_ram_iterate) { - ret = f->hooks->before_ram_iterate(f, flags, NULL); - if (ret < 0) { - qemu_file_set_error(f, ret); - } - } -} - void ram_control_after_iterate(QEMUFile *f, uint64_t flags) { int ret = 0; diff --git a/migration/ram.c b/migration/ram.c index e4bfd39f08..407760b3a2 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -59,6 +59,7 @@ #include "qemu/iov.h" #include "multifd.h" #include "sysemu/runstate.h" +#include "rdma.h" #include "options.h" #include "sysemu/dirtylimit.h" #include "sysemu/kvm.h" @@ -3054,7 +3055,10 @@ static int ram_save_setup(QEMUFile *f, void *opaque) } } - ram_control_before_iterate(f, RAM_CONTROL_SETUP); + ret = qemu_rdma_registration_start(f, RAM_CONTROL_SETUP); + if (ret < 0) { + qemu_file_set_error(f, ret); + } ram_control_after_iterate(f, RAM_CONTROL_SETUP); migration_ops = g_malloc0(sizeof(MigrationOps)); @@ -3114,7 +3118,10 @@ static int ram_save_iterate(QEMUFile *f, void *opaque) /* Read version before ram_list.blocks */ smp_rmb(); - ram_control_before_iterate(f, RAM_CONTROL_ROUND); + ret = qemu_rdma_registration_start(f, RAM_CONTROL_ROUND); + if (ret < 0) { + qemu_file_set_error(f, ret); + } t0 = qemu_clock_get_ns(QEMU_CLOCK_REALTIME); i = 0; @@ -3219,7 +3226,10 @@ static int ram_save_complete(QEMUFile *f, void *opaque) migration_bitmap_sync_precopy(rs, true); } - ram_control_before_iterate(f, RAM_CONTROL_FINISH); + ret = qemu_rdma_registration_start(f, RAM_CONTROL_FINISH); + if (ret < 0) { + qemu_file_set_error(f, ret); + } /* try transferring iterative blocks of memory */ diff --git a/migration/rdma.c b/migration/rdma.c index 6219227915..a93d8d705d 100644 --- a/migration/rdma.c +++ b/migration/rdma.c @@ -3868,18 +3868,15 @@ static int rdma_load_hook(QEMUFile *f, uint64_t flags, void *data) } } -static int qemu_rdma_registration_start(QEMUFile *f, - uint64_t flags, void *data) +int qemu_rdma_registration_start(QEMUFile *f, uint64_t flags) { - QIOChannelRDMA *rioc = QIO_CHANNEL_RDMA(qemu_file_get_ioc(f)); - RDMAContext *rdma; - - if (migration_in_postcopy()) { + if (!migrate_rdma () || migration_in_postcopy()) { return 0; } + QIOChannelRDMA *rioc = QIO_CHANNEL_RDMA(qemu_file_get_ioc(f)); RCU_READ_LOCK_GUARD(); - rdma = qatomic_rcu_read(&rioc->rdmaout); + RDMAContext *rdma = qatomic_rcu_read(&rioc->rdmaout); if (!rdma) { return -EIO; } @@ -4012,7 +4009,6 @@ static const QEMUFileHooks rdma_read_hooks = { }; static const QEMUFileHooks rdma_write_hooks = { - .before_ram_iterate = qemu_rdma_registration_start, .after_ram_iterate = qemu_rdma_registration_stop, .save_page = qemu_rdma_save_page, };