On Wed, Jun 05, 2024 at 10:00:24AM +0000, Gonglei (Arei) wrote: > > > > -----Original Message----- > > From: Michael S. Tsirkin [mailto:m...@redhat.com] > > Sent: Wednesday, June 5, 2024 3:57 PM > > To: Gonglei (Arei) <arei.gong...@huawei.com> > > Cc: qemu-devel@nongnu.org; pet...@redhat.com; yu.zh...@ionos.com; > > mgal...@akamai.com; elmar.ger...@ionos.com; zhengchuan > > <zhengch...@huawei.com>; berra...@redhat.com; arm...@redhat.com; > > lizhij...@fujitsu.com; pbonz...@redhat.com; Xiexiangyou > > <xiexiang...@huawei.com>; linux-r...@vger.kernel.org; lixiao (H) > > <lixia...@huawei.com>; jinpu.w...@ionos.com; Wangjialin > > <wangjiali...@huawei.com> > > Subject: Re: [PATCH 0/6] refactor RDMA live migration based on rsocket API > > > > On Tue, Jun 04, 2024 at 08:14:06PM +0800, Gonglei wrote: > > > From: Jialin Wang <wangjiali...@huawei.com> > > > > > > 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@linar > > > o.org/ > > > > > > 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! > > > > So you didn't test it with an RDMA card? > > Yep, we tested it by Soft-ROCE.
Does Soft-RoCE (RXE) support live migration? Thanks
