From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49096) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fmfa0-0003FN-8Y for qemu-devel@nongnu.org; Mon, 06 Aug 2018 09:29:49 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fmfZx-0008CW-Hb for qemu-devel@nongnu.org; Mon, 06 Aug 2018 09:29:48 -0400 Received: from mail-pg1-x536.google.com ([2607:f8b0:4864:20::536]:46597) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1fmfZx-0008C1-Bn for qemu-devel@nongnu.org; Mon, 06 Aug 2018 09:29:45 -0400 Received: by mail-pg1-x536.google.com with SMTP id f14-v6so5716250pgv.13 for ; Mon, 06 Aug 2018 06:29:45 -0700 (PDT) From: Lidong Chen Date: Mon, 6 Aug 2018 21:29:26 +0800 Message-Id: <1533562177-16447-1-git-send-email-lidongchen@tencent.com> Subject: [Qemu-devel] [PATCH v6 00/11] 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 Cc: qemu-devel@nongnu.org, 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. [v6] - rebase - add the check whether release rdma resource has finished(David) - remove unnecessary RDMA_CONTROL_ERROR when cleanup(David) - poll the cm event for destination qemu [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 (11): migration: disable RDMA WRITE after postcopy started migration: create a dedicated connection for rdma return path 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: poll the cm event while wait RDMA work request completion migration: implement the shutdown for RDMA QIOChannel migration: poll the cm event for destination qemu migration: remove the unnecessary RDMA_CONTROL_ERROR message migration: create a dedicated thread to release rdma resource migration/colo.c | 2 + migration/migration.c | 11 +- migration/migration.h | 3 + migration/postcopy-ram.c | 2 + migration/qemu-file-channel.c | 12 +- migration/qemu-file.c | 8 +- migration/ram.c | 4 + migration/rdma.c | 449 ++++++++++++++++++++++++++++++++++++++---- migration/savevm.c | 3 + 9 files changed, 446 insertions(+), 48 deletions(-) -- 1.8.3.1