On Tue, Jun 04, 2024 at 08:14:06PM +0800, Gonglei wrote: > From: Jialin Wang <wangjialin23@xxxxxxxxxx> > > Hi, > > This patch series attempts to refactor RDMA live migration by > introducing a new QIOChannelRDMA class based on the rsocket API. > > The /usr/include/rdma/rsocket.h provides a higher level rsocket API > that is a 1-1 match of the normal kernel 'sockets' API, which hides the > detail of rdma protocol into rsocket and allows us to add support for > some modern features like multifd more easily. > > Here is the previous discussion on refactoring RDMA live migration using > the rsocket API: > > https://lore.kernel.org/qemu-devel/20240328130255.52257-1-philmd@xxxxxxxxxx/ > > We have encountered some bugs when using rsocket and plan to submit them to > the rdma-core community. > > In addition, the use of rsocket makes our programming more convenient, > but it must be noted that this method introduces multiple memory copies, > which can be imagined that there will be a certain performance degradation, > hoping that friends with RDMA network cards can help verify, thank you! > > Jialin Wang (6): > migration: remove RDMA live migration temporarily > io: add QIOChannelRDMA class > io/channel-rdma: support working in coroutine > tests/unit: add test-io-channel-rdma.c > migration: introduce new RDMA live migration > migration/rdma: support multifd for RDMA migration This series has been idle for a while; we still need to know how to move forward. I guess I lost the latest status quo.. Any update (from anyone..) on what stage are we in? Thanks, -- Peter Xu
