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Subject[PATCH net-next 0/3] basic in order support for vhost_net

This series implement basic in order feature support for
vhost_net. This feature requires both driver and device to use
descriptors in order which can simplify the implementation and
optimizaton for both side. The series also implement a simple
optimization that avoid read available ring. Test shows 10%
performance improvement.

More optimizations could be done on top.

Jason Wang (3):
virtio: introduce in order feature bit
vhost_net: support in order feature
vhost: don't touch avail ring if in_order is negotiated

drivers/vhost/net.c | 6 ++++--
drivers/vhost/vhost.c | 19 ++++++++++++-------
include/uapi/linux/virtio_config.h | 6 ++++++
3 files changed, 22 insertions(+), 9 deletions(-)


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