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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 Content-Type: text/plain 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=huawei.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/17 00:09:47 X-ACL-Warn: Detected OS = Linux 3.11 and newer [fuzzy] 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_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_PASS=-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, fengzhimin1@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" 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; +#ifdef CONFIG_RDMA + if (migrate_use_rdma()) { + ops = multifd_rdma_setup(); + return ops; + } +#endif ops = &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; +#ifdef CONFIG_RDMA +MultiFDSetup *multifd_rdma_setup(void); +#endif +MultiFDSetup *multifd_setup_ops_init(void); void multifd_register_ops(int method, MultiFDMethods *ops); #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 = 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 = false; + qemu_mutex_unlock(&p->mutex); + + return NULL; +} + +static void multifd_rdma_send_channel_setup(MultiFDSendParams *p) +{ + Error *local_err = NULL; + + if (p->quit) { + error_setg(&local_err, "multifd: send id %d already quit", p->id); + return ; + } + p->running = 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 = 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 = false; + qemu_mutex_unlock(&p->mutex); + + return NULL; +} + +static void multifd_rdma_recv_channel_setup(QIOChannel *ioc, + MultiFDRecvParams *p) +{ + QIOChannelRDMA *rioc = QIO_CHANNEL_RDMA(ioc); + + p->file = rioc->file; + return; +} + +static MultiFDSetup multifd_rdma_ops = { + .send_thread_setup = multifd_rdma_send_thread, + .recv_thread_setup = multifd_rdma_recv_thread, + .send_channel_setup = multifd_rdma_send_channel_setup, + .recv_channel_setup = multifd_rdma_recv_channel_setup +}; + +MultiFDSetup *multifd_rdma_setup(void) +{ + MultiFDSetup *rdma_ops; + + rdma_ops = &multifd_rdma_ops; + + return rdma_ops; +} -- 1.8.3.1