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bh=rZdM+LhQbIEFIfbq5d8pev/I0xt9A8BfbXRQwG9dPFM=; b=dEIPW23y7OHM9SAHukFV7S5+VOsyRV88hrT1+xQH0N907Ru4pwMc5oHAFjJlD3ZaHJebVE 24vuOOPQ93jPr8fq/dEpcyRucQicWYeSV+U+W/Hodk/2XH6cY8dp4KHsy+SNpzNTlP61Z/ N8w/HmUOYt7mWYxZ4aKMHUkl5pYk0rU= X-MC-Unique: xNC3lV13PtyaF21Dqc7eCg-1 From: Juan Quintela To: qemu-devel@nongnu.org Cc: qemu-block@nongnu.org, Paolo Bonzini , Vladimir Sementsov-Ogievskiy , Fam Zheng , Cleber Rosa , Eric Blake , Li Zhijian , Peter Xu , Markus Armbruster , John Snow , Stefan Hajnoczi , Juan Quintela , Leonardo Bras , Laurent Vivier , Fabiano Rosas , Thomas Huth Subject: [PULL 15/38] migration/rdma: Unfold ram_control_before_iterate() Date: Mon, 16 Oct 2023 12:06:43 +0200 Message-ID: <20231016100706.2551-16-quintela@redhat.com> In-Reply-To: <20231016100706.2551-1-quintela@redhat.com> References: <20231016100706.2551-1-quintela@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.1 on 10.11.54.5 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=170.10.133.124; envelope-from=quintela@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1697451023584100003 Content-Type: text/plain; charset="utf-8" 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: Li Zhijian Reviewed-by: Fabiano Rosas Signed-off-by: Juan Quintela Message-ID: <20231011203527.9061-3-quintela@redhat.com> --- 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); =20 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); =20 -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); =20 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 c= har *host_port, =20 void rdma_start_incoming_migration(const char *host_port, Error **errp); =20 + +#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 7fb659296f..5e2d73fd68 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" =20 #define IO_BUF_SIZE 32768 #define MAX_IOV_SIZE MIN_CONST(IOV_MAX, 64) @@ -297,18 +298,6 @@ void qemu_fflush(QEMUFile *f) f->iovcnt =3D 0; } =20 -void ram_control_before_iterate(QEMUFile *f, uint64_t flags) -{ - int ret =3D 0; - - if (f->hooks && f->hooks->before_ram_iterate) { - ret =3D 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 =3D 0; diff --git a/migration/ram.c b/migration/ram.c index acb8f95f00..6592431a4e 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" @@ -3060,7 +3061,10 @@ static int ram_save_setup(QEMUFile *f, void *opaque) } } =20 - ram_control_before_iterate(f, RAM_CONTROL_SETUP); + ret =3D 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); =20 migration_ops =3D g_malloc0(sizeof(MigrationOps)); @@ -3123,7 +3127,10 @@ static int ram_save_iterate(QEMUFile *f, void *opaqu= e) /* Read version before ram_list.blocks */ smp_rmb(); =20 - ram_control_before_iterate(f, RAM_CONTROL_ROUND); + ret =3D qemu_rdma_registration_start(f, RAM_CONTROL_ROUND); + if (ret < 0) { + qemu_file_set_error(f, ret); + } =20 t0 =3D qemu_clock_get_ns(QEMU_CLOCK_REALTIME); i =3D 0; @@ -3228,7 +3235,10 @@ static int ram_save_complete(QEMUFile *f, void *opaq= ue) migration_bitmap_sync_precopy(rs, true); } =20 - ram_control_before_iterate(f, RAM_CONTROL_FINISH); + ret =3D qemu_rdma_registration_start(f, RAM_CONTROL_FINISH); + if (ret < 0) { + qemu_file_set_error(f, ret); + } =20 /* try transferring iterative blocks of memory */ =20 diff --git a/migration/rdma.c b/migration/rdma.c index f155f3e1c8..3d74ad6db0 100644 --- a/migration/rdma.c +++ b/migration/rdma.c @@ -3850,18 +3850,15 @@ static int rdma_load_hook(QEMUFile *f, uint64_t fla= gs, void *data) } } =20 -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 =3D QIO_CHANNEL_RDMA(qemu_file_get_ioc(f)); - RDMAContext *rdma; - - if (migration_in_postcopy()) { + if (!migrate_rdma() || migration_in_postcopy()) { return 0; } =20 + QIOChannelRDMA *rioc =3D QIO_CHANNEL_RDMA(qemu_file_get_ioc(f)); RCU_READ_LOCK_GUARD(); - rdma =3D qatomic_rcu_read(&rioc->rdmaout); + RDMAContext *rdma =3D qatomic_rcu_read(&rioc->rdmaout); if (!rdma) { return -1; } @@ -4002,7 +3999,6 @@ static const QEMUFileHooks rdma_read_hooks =3D { }; =20 static const QEMUFileHooks rdma_write_hooks =3D { - .before_ram_iterate =3D qemu_rdma_registration_start, .after_ram_iterate =3D qemu_rdma_registration_stop, .save_page =3D qemu_rdma_save_page, }; --=20 2.41.0