linux-kernel - [PATCH net-next V2 0/3] basic in order support for vhost

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Message-Id: <20190109080530.18572-1-jasowang@redhat.com>
Date:   Wed,  9 Jan 2019 16:05:27 +0800
From:   Jason Wang <jasowang@...hat.com>
To:     mst@...hat.com, jasowang@...hat.com
Cc:     kvm@...r.kernel.org, virtualization@...ts.linux-foundation.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH net-next V2 0/3] basic in order support for vhost_net

Hi:

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 at most.

More optimizations could be done on top.

Changes from V1:
- no code changes
- add result of SMAP off

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(-)

-- 
2.17.1