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...Mon, 21 May 2018 17:04:24 +0800 Jason wrote: > Signed-off-by: Jason Wang <jasowang at redhat.com> > --- > drivers/vhost/net.c | 12 +++++++++--- > 1 file changed, 9 insertions(+), 3 deletions(-) > > diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c > index de544ee..4ebac76 100644 > --- a/drivers/vhost/net.c > +++ b/drivers/vhost/net.c > @@ -485,6 +485,13 @@ static bool vhost_exceeds_weight(int pkts, int total_len) > unlikely(pkts >= VHOST_NET_PKT_WEIGHT); > } > > +static bool vhost_has_more_pkts(struct vhost_net *net, > + str...

...ily. > > Signed-off-by: Jason Wang <jasowang at redhat.com> > --- > drivers/vhost/net.c | 111 +++++++++++++++++++++++++++++++++++++++++++++++----- > 1 file changed, 102 insertions(+), 9 deletions(-) > > diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c > index 4ebac76..4682fcc 100644 > --- a/drivers/vhost/net.c > +++ b/drivers/vhost/net.c > @@ -492,9 +492,95 @@ static bool vhost_has_more_pkts(struct vhost_net *net, > likely(!vhost_exceeds_maxpend(net)); > } > > +static void handle_tx_copy(struct vhost_net *net) > +{ > + str...

Signed-off-by: Jason Wang <jasowang at redhat.com> --- drivers/vhost/net.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index de544ee..4ebac76 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -485,6 +485,13 @@ static bool vhost_exceeds_weight(int pkts, int total_len) unlikely(pkts >= VHOST_NET_PKT_WEIGHT); } +static bool vhost_has_more_pkts(struct vhost_net *net, + struct vhost_virtqueue *vq) +{ + return !vh...

...timization could be done on top more easily. Signed-off-by: Jason Wang <jasowang at redhat.com> --- drivers/vhost/net.c | 111 +++++++++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 102 insertions(+), 9 deletions(-) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 4ebac76..4682fcc 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -492,9 +492,95 @@ static bool vhost_has_more_pkts(struct vhost_net *net, likely(!vhost_exceeds_maxpend(net)); } +static void handle_tx_copy(struct vhost_net *net) +{ + struct vhost_net_virtqueue *nvq = &net->v...

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