There is one compile error, please ignore those patch, I will send a new version patch.
On Fri, Aug 3, 2018 at 5:13 PM, Lidong Chen <jemmy858...@gmail.com> wrote: > 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 (12): > 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: 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 | 13 +- > migration/migration.h | 10 + > migration/postcopy-ram.c | 2 + > migration/qemu-file-channel.c | 12 +- > migration/qemu-file.c | 14 +- > migration/ram.c | 4 + > migration/rdma.c | 448 > ++++++++++++++++++++++++++++++++++++++---- > migration/savevm.c | 3 + > 9 files changed, 458 insertions(+), 50 deletions(-) > > -- > 1.8.3.1 >
