qemu-e2k/migration
Li Zhijian 911965ace9 migration/rdma: advise prefetch write for ODP region
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 <lizhijian@cn.fujitsu.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2021-10-19 08:39:04 +02:00
..
block-dirty-bitmap.c
block.c
block.h
channel.c
channel.h
colo-failover.c
colo.c
dirtyrate.c
dirtyrate.h
exec.c
exec.h
fd.c
fd.h
global_state.c
meson.build
migration.c
migration.h
multifd-zlib.c
multifd-zstd.c
multifd.c
multifd.h
page_cache.c
page_cache.h
postcopy-ram.c
postcopy-ram.h
qemu-file-channel.c
qemu-file-channel.h
qemu-file.c
qemu-file.h
ram.c
ram.h
rdma.c migration/rdma: advise prefetch write for ODP region 2021-10-19 08:39:04 +02:00
rdma.h
savevm.c
savevm.h
socket.c
socket.h
target.c
tls.c
tls.h
trace-events migration/rdma: advise prefetch write for ODP region 2021-10-19 08:39:04 +02:00
trace.h
vmstate-types.c
vmstate.c
xbzrle.c
xbzrle.h
yank_functions.c
yank_functions.h