From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40000) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fQDsl-00083v-PN for qemu-devel@nongnu.org; Tue, 05 Jun 2018 11:28:24 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fQDsg-0003lB-RU for qemu-devel@nongnu.org; Tue, 05 Jun 2018 11:28:23 -0400 Received: from mail-pl0-x229.google.com ([2607:f8b0:400e:c01::229]:38517) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1fQDsg-0003ka-Kx for qemu-devel@nongnu.org; Tue, 05 Jun 2018 11:28:18 -0400 Received: by mail-pl0-x229.google.com with SMTP id b14-v6so1733251pls.5 for ; Tue, 05 Jun 2018 08:28:18 -0700 (PDT) From: Lidong Chen Date: Tue, 5 Jun 2018 23:27:59 +0800 Message-Id: <1528212489-19137-1-git-send-email-lidongchen@tencent.com> Subject: [Qemu-devel] [PATCH v5 00/10] Enable postcopy RDMA live migration List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: zhang.zhanghailiang@huawei.com, quintela@redhat.com, dgilbert@redhat.com, berrange@redhat.com, aviadye@mellanox.com, pbonzini@redhat.com Cc: qemu-devel@nongnu.org, adido@mellanox.com, galsha@mellanox.com, Lidong Chen The RDMA QIOChannel does not support bi-directional communication, so when RDMA live migration with postcopy enabled, the source qemu return path get qemu file error. These patches implement bi-directional communication for RDMA QIOChannel and disable the RDMA WRITE during the postcopy phase. This patch just make postcopy works, and will improve performance later. [v5] - rebase - fix bug for create a dedicated thread to release rdma resource(David) - fix bug for poll the cm event while wait RDMA work request completion(David,Gal) [v4] - not wait RDMA_CM_EVENT_DISCONNECTED event after rdma_disconnect - implement io_set_aio_fd_handler function for RDMA QIOChannel (Juan Quintela) - invoke qio_channel_yield only when qemu_in_coroutine() (Juan Quintela) - create a dedicated thread to release rdma resource - poll the cm event while wait RDMA work request completion - implement the shutdown function for RDMA QIOChannel [v3] - add a mutex in QEMUFile struct to avoid concurrent channel close (Daniel) - destroy the mutex before free QEMUFile (David) - use rdmain and rmdaout instead of rdma->return_path (Daniel) [v2] - does not update bytes_xfer when disable RDMA WRITE (David) - implement bi-directional communication for RDMA QIOChannel (Daniel) Lidong Chen (10): migration: disable RDMA WRITE after postcopy started migration: create a dedicated connection for rdma return path migration: avoid concurrent invoke channel_close by different threads migration: implement bi-directional RDMA QIOChannel migration: Stop rdma yielding during incoming postcopy migration: implement io_set_aio_fd_handler function for RDMA QIOChannel migration: invoke qio_channel_yield only when qemu_in_coroutine() migration: create a dedicated thread to release rdma resource migration: poll the cm event while wait RDMA work request completion migration: implement the shutdown for RDMA QIOChannel migration/colo.c | 2 + migration/migration.c | 4 + migration/migration.h | 7 + migration/postcopy-ram.c | 2 + migration/qemu-file-channel.c | 12 +- migration/qemu-file.c | 14 +- migration/ram.c | 4 + migration/rdma.c | 404 ++++++++++++++++++++++++++++++++++++++---- migration/savevm.c | 3 + 9 files changed, 414 insertions(+), 38 deletions(-) -- 1.8.3.1