search for: f0639d7

...based on the TUN XDP. > > Signed-off-by: Jason Wang <jasowang at redhat.com> > --- > drivers/vhost/net.c | 74 +++++++++++++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 74 insertions(+) > > diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c > index f0639d7..1209e84 100644 > --- a/drivers/vhost/net.c > +++ b/drivers/vhost/net.c > @@ -492,6 +492,80 @@ static bool vhost_has_more_pkts(struct vhost_net *net, > likely(!vhost_exceeds_maxpend(net)); > } > > +#define VHOST_NET_HEADROOM 256 > +#define VHOST_NET_RX_PAD (NET_I...

...ching from XDP. TODO: reserve headroom based on the TUN XDP. Signed-off-by: Jason Wang <jasowang at redhat.com> --- drivers/vhost/net.c | 74 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index f0639d7..1209e84 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -492,6 +492,80 @@ static bool vhost_has_more_pkts(struct vhost_net *net, likely(!vhost_exceeds_maxpend(net)); } +#define VHOST_NET_HEADROOM 256 +#define VHOST_NET_RX_PAD (NET_IP_ALIGN + NET_SKB_PAD) + +static int vho...

Hi all: We do not support XDP batching for TUN since it can only receive one packet a time from vhost_net. This series tries to remove this limitation by: - introduce a TUN specific msg_control that can hold a pointer to an array of XDP buffs - try copy and build XDP buff in vhost_net - store XDP buffs in an array and submit them once for every N packets from vhost_net - since TUN can only