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...ding > reset on XDP. > > Signed-off-by: Jason Wang <jasowang at redhat.com> > --- > drivers/net/virtio_net.c | 12 +++++++----- > 1 file changed, 7 insertions(+), 5 deletions(-) > > diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c > index 8fae9a8..e31b5b2 100644 > --- a/drivers/net/virtio_net.c > +++ b/drivers/net/virtio_net.c > @@ -410,7 +410,8 @@ static unsigned int virtnet_get_headroom(struct virtnet_info *vi) > static struct sk_buff *receive_small(struct net_device *dev, > struct virtnet_info *vi, > struct...

...ding > reset on XDP. > > Signed-off-by: Jason Wang <jasowang at redhat.com> > --- > drivers/net/virtio_net.c | 12 +++++++----- > 1 file changed, 7 insertions(+), 5 deletions(-) > > diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c > index 8fae9a8..e31b5b2 100644 > --- a/drivers/net/virtio_net.c > +++ b/drivers/net/virtio_net.c > @@ -410,7 +410,8 @@ static unsigned int virtnet_get_headroom(struct virtnet_info *vi) > static struct sk_buff *receive_small(struct net_device *dev, > struct virtnet_info *vi, > struct...

...x API for small buffer, this is need for avoiding reset on XDP. Signed-off-by: Jason Wang <jasowang at redhat.com> --- drivers/net/virtio_net.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 8fae9a8..e31b5b2 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -410,7 +410,8 @@ static unsigned int virtnet_get_headroom(struct virtnet_info *vi) static struct sk_buff *receive_small(struct net_device *dev, struct virtnet_info *vi, struct receive_queue *rq, - v...

Hi: This series brings two optimizations for virtio-net XDP: - avoid reset during XDP set - turn off offloads on demand Please review. Thanks Jason Wang (5): virtio_ring: allow to store zero as the ctx virtio-net: pack headroom into ctx for mergeable buffer virtio-net: switch to use new ctx API for small buffer virtio-net: do not reset during XDP set virtio-net: switch off offloads

Hi: This series brings two optimizations for virtio-net XDP: - avoid reset during XDP set - turn off offloads on demand Please review. Thanks Jason Wang (5): virtio_ring: allow to store zero as the ctx virtio-net: pack headroom into ctx for mergeable buffer virtio-net: switch to use new ctx API for small buffer virtio-net: do not reset during XDP set virtio-net: switch off offloads

...gt; Signed-off-by: Jason Wang <jasowang at redhat.com> > --- > drivers/net/virtio_net.c | 230 ++++++++++++++++++++++------------------------- > 1 file changed, 105 insertions(+), 125 deletions(-) > > diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c > index e31b5b2..e732bd6 100644 > --- a/drivers/net/virtio_net.c > +++ b/drivers/net/virtio_net.c > @@ -407,6 +407,67 @@ static unsigned int virtnet_get_headroom(struct virtnet_info *vi) > return vi->xdp_queue_pairs ? VIRTIO_XDP_HEADROOM : 0; > } > > +/* We copy and linearize packet in...

...gt; Signed-off-by: Jason Wang <jasowang at redhat.com> > --- > drivers/net/virtio_net.c | 230 ++++++++++++++++++++++------------------------- > 1 file changed, 105 insertions(+), 125 deletions(-) > > diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c > index e31b5b2..e732bd6 100644 > --- a/drivers/net/virtio_net.c > +++ b/drivers/net/virtio_net.c > @@ -407,6 +407,67 @@ static unsigned int virtnet_get_headroom(struct virtnet_info *vi) > return vi->xdp_queue_pairs ? VIRTIO_XDP_HEADROOM : 0; > } > > +/* We copy and linearize packet in...

...hich has a large enough headroom Signed-off-by: Jason Wang <jasowang at redhat.com> --- drivers/net/virtio_net.c | 230 ++++++++++++++++++++++------------------------- 1 file changed, 105 insertions(+), 125 deletions(-) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index e31b5b2..e732bd6 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -407,6 +407,67 @@ static unsigned int virtnet_get_headroom(struct virtnet_info *vi) return vi->xdp_queue_pairs ? VIRTIO_XDP_HEADROOM : 0; } +/* We copy and linearize packet in the following cases: + * + * 1) Pa...