Li Zhijian <lizhij...@cn.fujitsu.com> wrote: > The responder mr registering with ODP will sent RNR NAK back to > the requester in the face of the page fault. > --------- > ibv_poll_cq wc.status=13 RNR retry counter exceeded! > ibv_poll_cq wrid=WRITE RDMA! > --------- > ibv_advise_mr(3) helps to make pages present before the actual IO is > conducted so that the responder does page fault as little as possible. > > Signed-off-by: Li Zhijian <lizhij...@cn.fujitsu.com> > Reviewed-by: Marcel Apfelbaum <marcel.apfelb...@gmail.com> > > --- > V3: Fix FreeBSD compiling errors > V2: use IBV_ADVISE_MR_FLAG_FLUSH instead of IB_UVERBS_ADVISE_MR_FLAG_FLUSH > and add Reviewed-by tag. # Marcel > --- > meson.build | 6 ++++++ > migration/rdma.c | 42 ++++++++++++++++++++++++++++++++++++++++++ > migration/trace-events | 1 + > 3 files changed, 49 insertions(+)
Reviewed-by: Juan Quintela <quint...@redhat.com>
