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Wed, 3 Feb 2021 15:42:36 +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 15:43:41 +0800 From: Chuan Zheng To: , , Subject: [PATCH v4 09/18] migration/rdma: add multifd_rdma_load_setup() to setup multifd rdma Date: Wed, 3 Feb 2021 16:01:42 +0800 Message-ID: <1612339311-114805-10-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" Signed-off-by: Chuan Zheng Reviewed-by: Dr. David Alan Gilbert --- migration/rdma.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) diff --git a/migration/rdma.c b/migration/rdma.c index e0ea86d..996afb0 100644 --- a/migration/rdma.c +++ b/migration/rdma.c @@ -4011,6 +4011,48 @@ static void rdma_accept_incoming_migration(void *opaque) } } +static bool multifd_rdma_load_setup(const char *host_port, + RDMAContext *rdma, Error **errp) +{ + int thread_count; + int i; + int idx; + MultiFDRecvParams *multifd_recv_param; + RDMAContext *multifd_rdma; + + if (!migrate_use_multifd()) { + return true; + } + + if (multifd_load_setup(errp) != 0) { + /* + * We haven't been able to create multifd threads + * nothing better to do + */ + return false; + } + + thread_count = migrate_multifd_channels(); + for (i = 0; i < thread_count; i++) { + if (get_multifd_recv_param(i, &multifd_recv_param) < 0) { + ERROR(errp, "rdma: error getting multifd_recv_param(%d)", i); + return false; + } + + multifd_rdma = qemu_rdma_data_init(host_port, errp); + for (idx = 0; idx < RDMA_WRID_MAX; idx++) { + multifd_rdma->wr_data[idx].control_len = 0; + multifd_rdma->wr_data[idx].control_curr = NULL; + } + /* the CM channel and CM id is shared */ + multifd_rdma->channel = rdma->channel; + multifd_rdma->listen_id = rdma->listen_id; + multifd_recv_param->rdma = (void *)multifd_rdma; + } + + return true; +} + void rdma_start_incoming_migration(const char *host_port, Error **errp) { int ret; @@ -4058,6 +4100,16 @@ void rdma_start_incoming_migration(const char *host_port, Error **errp) qemu_rdma_return_path_dest_init(rdma_return_path, rdma); } + /* multifd rdma setup */ + if (!multifd_rdma_load_setup(host_port, rdma, &local_err)) { + /* + * We haven't been able to create multifd threads + * nothing better to do + */ + error_report_err(local_err); + goto err; + } + qemu_set_fd_handler(rdma->channel->fd, rdma_accept_incoming_migration, NULL, (void *)(intptr_t)rdma); return;