search for: bdf5de5a7eb2

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. More optimizations could be done on top. Jason Wang (3):

...d which tends to be suboptimal consider zerocopy may suffer from e.g HOL issues. Signed-off-by: Jason Wang <jasowang at redhat.com> --- drivers/vhost/net.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index d919284f103b..bdf5de5a7eb2 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -74,7 +74,8 @@ enum { VHOST_NET_FEATURES = VHOST_FEATURES | (1ULL << VHOST_NET_F_VIRTIO_NET_HDR) | (1ULL << VIRTIO_NET_F_MRG_RXBUF) | - (1ULL << VIRTIO_F_IOMMU_PLATFORM) + (1ULL << VIRTIO_F_IOMMU...

...e could just enable IN_ORDER there too. > > Signed-off-by: Jason Wang <jasowang at redhat.com> > --- > drivers/vhost/net.c | 6 ++++-- > 1 file changed, 4 insertions(+), 2 deletions(-) > > diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c > index d919284f103b..bdf5de5a7eb2 100644 > --- a/drivers/vhost/net.c > +++ b/drivers/vhost/net.c > @@ -74,7 +74,8 @@ enum { > VHOST_NET_FEATURES = VHOST_FEATURES | > (1ULL << VHOST_NET_F_VIRTIO_NET_HDR) | > (1ULL << VIRTIO_NET_F_MRG_RXBUF) | > - (1ULL << VIRTIO_F_IOMMU_PLATFORM)...