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...ts. > > Signed-off-by: Jason Wang <jasowang at redhat.com> > --- > drivers/net/virtio_net.c | 29 ++++++++++++++++++++++++----- > 1 file changed, 24 insertions(+), 5 deletions(-) > > diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c > index 1f8c15c..8fae9a8 100644 > --- a/drivers/net/virtio_net.c > +++ b/drivers/net/virtio_net.c > @@ -270,6 +270,23 @@ static void skb_xmit_done(struct virtqueue *vq) > netif_wake_subqueue(vi->dev, vq2txq(vq)); > } > > +#define MRG_CTX_HEADER_SHIFT 22 > +static void *mergeable_len_to_ctx(...

...ts. > > Signed-off-by: Jason Wang <jasowang at redhat.com> > --- > drivers/net/virtio_net.c | 29 ++++++++++++++++++++++++----- > 1 file changed, 24 insertions(+), 5 deletions(-) > > diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c > index 1f8c15c..8fae9a8 100644 > --- a/drivers/net/virtio_net.c > +++ b/drivers/net/virtio_net.c > @@ -270,6 +270,23 @@ static void skb_xmit_done(struct virtqueue *vq) > netif_wake_subqueue(vi->dev, vq2txq(vq)); > } > > +#define MRG_CTX_HEADER_SHIFT 22 > +static void *mergeable_len_to_ctx(...

...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, >...

...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, >...

.... This is required for avoiding reset on XDP. Signed-off-by: Jason Wang <jasowang at redhat.com> --- drivers/net/virtio_net.c | 29 ++++++++++++++++++++++++----- 1 file changed, 24 insertions(+), 5 deletions(-) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 1f8c15c..8fae9a8 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -270,6 +270,23 @@ static void skb_xmit_done(struct virtqueue *vq) netif_wake_subqueue(vi->dev, vq2txq(vq)); } +#define MRG_CTX_HEADER_SHIFT 22 +static void *mergeable_len_to_ctx(unsigned int truesize, + unsigned i...

...to use ctx 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, -...

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

Hi: This series brings two optimizations for virtio-net XDP: - avoid reset during XDP set - turn off offloads on demand Changes from V1: - Various tweaks on commit logs and comments - Use virtnet_napi_enable() when enabling NAPI on XDP set - Copy the small buffer packet only if xdp_headroom is smaller than required Please review. Thanks Jason Wang (5): virtio_ring: allow to store zero as

Hi: This series brings two optimizations for virtio-net XDP: - avoid reset during XDP set - turn off offloads on demand Changes from V1: - Various tweaks on commit logs and comments - Use virtnet_napi_enable() when enabling NAPI on XDP set - Copy the small buffer packet only if xdp_headroom is smaller than required Please review. Thanks Jason Wang (5): virtio_ring: allow to store zero as