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Sat, 17 Oct 2020 00:10:00 -0400 Received: from DGGEMS414-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id 673E8B90808B864C7865; Sat, 17 Oct 2020 12:09:51 +0800 (CST) Received: from huawei.com (10.175.101.6) by DGGEMS414-HUB.china.huawei.com (10.3.19.214) with Microsoft SMTP Server id 14.3.487.0; Sat, 17 Oct 2020 12:09:42 +0800 From: Chuan Zheng To: , Subject: [PATCH v3 04/18] migration/rdma: add multifd_setup_ops for rdma Date: Sat, 17 Oct 2020 12:25:34 +0800 Message-ID: <1602908748-43335-5-git-send-email-zhengchuan@huawei.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1602908748-43335-1-git-send-email-zhengchuan@huawei.com> References: <1602908748-43335-1-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; 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charset="utf-8" Signed-off-by: Chuan Zheng --- migration/multifd.c | 6 ++++ migration/multifd.h | 4 +++ migration/rdma.c | 82 +++++++++++++++++++++++++++++++++++++++++++++++++= ++++ 3 files changed, 92 insertions(+) diff --git a/migration/multifd.c b/migration/multifd.c index 1f82307..0d494df 100644 --- a/migration/multifd.c +++ b/migration/multifd.c @@ -1210,6 +1210,12 @@ MultiFDSetup *multifd_setup_ops_init(void) { MultiFDSetup *ops; =20 +#ifdef CONFIG_RDMA + if (migrate_use_rdma()) { + ops =3D multifd_rdma_setup(); + return ops; + } +#endif ops =3D &multifd_socket_ops; return ops; } diff --git a/migration/multifd.h b/migration/multifd.h index 446315b..62a0b2a 100644 --- a/migration/multifd.h +++ b/migration/multifd.h @@ -173,6 +173,10 @@ typedef struct { void (*recv_channel_setup)(QIOChannel *ioc, MultiFDRecvParams *p); } MultiFDSetup; =20 +#ifdef CONFIG_RDMA +MultiFDSetup *multifd_rdma_setup(void); +#endif +MultiFDSetup *multifd_setup_ops_init(void); void multifd_register_ops(int method, MultiFDMethods *ops); =20 #endif diff --git a/migration/rdma.c b/migration/rdma.c index 0340841..ad4e4ba 100644 --- a/migration/rdma.c +++ b/migration/rdma.c @@ -19,6 +19,7 @@ #include "qemu/cutils.h" #include "rdma.h" #include "migration.h" +#include "multifd.h" #include "qemu-file.h" #include "ram.h" #include "qemu-file-channel.h" @@ -4138,3 +4139,84 @@ err: g_free(rdma); g_free(rdma_return_path); } + +static void *multifd_rdma_send_thread(void *opaque) +{ + MultiFDSendParams *p =3D opaque; + + while (true) { + qemu_mutex_lock(&p->mutex); + if (p->quit) { + qemu_mutex_unlock(&p->mutex); + break; + } + qemu_mutex_unlock(&p->mutex); + qemu_sem_wait(&p->sem); + } + + qemu_mutex_lock(&p->mutex); + p->running =3D false; + qemu_mutex_unlock(&p->mutex); + + return NULL; +} + +static void multifd_rdma_send_channel_setup(MultiFDSendParams *p) +{ + Error *local_err =3D NULL; + + if (p->quit) { + error_setg(&local_err, "multifd: send id %d already quit", p->id); + return ; + } + p->running =3D true; + + qemu_thread_create(&p->thread, p->name, multifd_rdma_send_thread, p, + QEMU_THREAD_JOINABLE); +} + +static void *multifd_rdma_recv_thread(void *opaque) +{ + MultiFDRecvParams *p =3D opaque; + + while (true) { + qemu_mutex_lock(&p->mutex); + if (p->quit) { + qemu_mutex_unlock(&p->mutex); + break; + } + qemu_mutex_unlock(&p->mutex); + qemu_sem_wait(&p->sem_sync); + } + + qemu_mutex_lock(&p->mutex); + p->running =3D false; + qemu_mutex_unlock(&p->mutex); + + return NULL; +} + +static void multifd_rdma_recv_channel_setup(QIOChannel *ioc, + MultiFDRecvParams *p) +{ + QIOChannelRDMA *rioc =3D QIO_CHANNEL_RDMA(ioc); + + p->file =3D rioc->file; + return; +} + +static MultiFDSetup multifd_rdma_ops =3D { + .send_thread_setup =3D multifd_rdma_send_thread, + .recv_thread_setup =3D multifd_rdma_recv_thread, + .send_channel_setup =3D multifd_rdma_send_channel_setup, + .recv_channel_setup =3D multifd_rdma_recv_channel_setup +}; + +MultiFDSetup *multifd_rdma_setup(void) +{ + MultiFDSetup *rdma_ops; + + rdma_ops =3D &multifd_rdma_ops; + + return rdma_ops; +} --=20 1.8.3.1