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...t; Signed-off-by: Tonghao Zhang <zhangtonghao at didichuxing.com> > --- > drivers/vhost/net.c | 94 +++++++++++++++++++++++++++++++---------------------- > 1 file changed, 55 insertions(+), 39 deletions(-) > > diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c > index 62bb8e8..2790959 100644 > --- a/drivers/vhost/net.c > +++ b/drivers/vhost/net.c > @@ -429,6 +429,52 @@ static int vhost_net_enable_vq(struct vhost_net *n, > return vhost_poll_start(poll, sock->file); > } > > +static int sk_has_rx_data(struct sock *sk) > +{ > + struct s...

...t; Signed-off-by: Tonghao Zhang <zhangtonghao at didichuxing.com> > --- > drivers/vhost/net.c | 94 +++++++++++++++++++++++++++++++---------------------- > 1 file changed, 55 insertions(+), 39 deletions(-) > > diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c > index 62bb8e8..2790959 100644 > --- a/drivers/vhost/net.c > +++ b/drivers/vhost/net.c > @@ -429,6 +429,52 @@ static int vhost_net_enable_vq(struct vhost_net *n, > return vhost_poll_start(poll, sock->file); > } > > +static int sk_has_rx_data(struct sock *sk) > +{ > + struct s...

From: Tonghao Zhang <xiangxia.m.yue at gmail.com> This patches improve the guest receive and transmit performance. On the handle_tx side, we poll the sock receive queue at the same time. handle_rx do that in the same way. For more performance report, see patch 4. v3 -> v4: fix some issues v2 -> v3: This patches are splited from previous big patch:

From: Tonghao Zhang <xiangxia.m.yue at gmail.com> This patches improve the guest receive and transmit performance. On the handle_tx side, we poll the sock receive queue at the same time. handle_rx do that in the same way. This patches are splited from previous big patch: http://patchwork.ozlabs.org/patch/934673/ For more performance report, see patch 4. Tonghao Zhang (4): net: vhost:

...t; Signed-off-by: Tonghao Zhang <zhangtonghao at didichuxing.com> > --- > drivers/vhost/net.c | 92 ++++++++++++++++++++++++++++++----------------------- > 1 file changed, 53 insertions(+), 39 deletions(-) > > diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c > index 62bb8e8..458f81d 100644 > --- a/drivers/vhost/net.c > +++ b/drivers/vhost/net.c > @@ -429,6 +429,50 @@ static int vhost_net_enable_vq(struct vhost_net *n, > return vhost_poll_start(poll, sock->file); > } > > +static int sk_has_rx_data(struct sock *sk) > +{ > + struct s...

...t didichuxing.com> >>> --- >>> drivers/vhost/net.c | 94 +++++++++++++++++++++++++++++++---------------------- >>> 1 file changed, 55 insertions(+), 39 deletions(-) >>> >>> diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c >>> index 62bb8e8..2790959 100644 >>> --- a/drivers/vhost/net.c >>> +++ b/drivers/vhost/net.c >>> @@ -429,6 +429,52 @@ static int vhost_net_enable_vq(struct vhost_net *n, >>> return vhost_poll_start(poll, sock->file); >>> } >>> >>> +static i...

...il.com> Use the VHOST_NET_VQ_XXX as a subclass for mutex_lock_nested. Signed-off-by: Tonghao Zhang <zhangtonghao at didichuxing.com> --- drivers/vhost/net.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index e7cf7d2..62bb8e8 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -484,7 +484,7 @@ static void handle_tx(struct vhost_net *net) bool zcopy, zcopy_used; int sent_pkts = 0; - mutex_lock(&vq->mutex); + mutex_lock_nested(&vq->mutex, VHOST_NET_VQ_TX); sock = vq->private_data; if (...

...e busyloop_timeout for rx queue. Signed-off-by: Tonghao Zhang <zhangtonghao at didichuxing.com> --- drivers/vhost/net.c | 92 ++++++++++++++++++++++++++++++----------------------- 1 file changed, 53 insertions(+), 39 deletions(-) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 62bb8e8..458f81d 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -429,6 +429,50 @@ static int vhost_net_enable_vq(struct vhost_net *n, return vhost_poll_start(poll, sock->file); } +static int sk_has_rx_data(struct sock *sk) +{ + struct socket *sock = sk->sk_socket; + + if (sock-&gt...

...e busyloop_timeout for rx queue. Signed-off-by: Tonghao Zhang <zhangtonghao at didichuxing.com> --- drivers/vhost/net.c | 94 +++++++++++++++++++++++++++++++---------------------- 1 file changed, 55 insertions(+), 39 deletions(-) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 62bb8e8..2790959 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -429,6 +429,52 @@ static int vhost_net_enable_vq(struct vhost_net *n, return vhost_poll_start(poll, sock->file); } +static int sk_has_rx_data(struct sock *sk) +{ + struct socket *sock = sk->sk_socket; + + if (sock-&gt...

...e busyloop_timeout for rx queue. Signed-off-by: Tonghao Zhang <zhangtonghao at didichuxing.com> --- drivers/vhost/net.c | 94 +++++++++++++++++++++++++++++++---------------------- 1 file changed, 55 insertions(+), 39 deletions(-) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 62bb8e8..2790959 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -429,6 +429,52 @@ static int vhost_net_enable_vq(struct vhost_net *n, return vhost_poll_start(poll, sock->file); } +static int sk_has_rx_data(struct sock *sk) +{ + struct socket *sock = sk->sk_socket; + + if (sock-&gt...

...g <zhangtonghao at didichuxing.com> > > --- > > drivers/vhost/net.c | 94 +++++++++++++++++++++++++++++++---------------------- > > 1 file changed, 55 insertions(+), 39 deletions(-) > > > > diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c > > index 62bb8e8..2790959 100644 > > --- a/drivers/vhost/net.c > > +++ b/drivers/vhost/net.c > > @@ -429,6 +429,52 @@ static int vhost_net_enable_vq(struct vhost_net *n, > > return vhost_poll_start(poll, sock->file); > > } > > > > +static int sk_has_rx_data(struc...

From: Tonghao Zhang <xiangxia.m.yue at gmail.com> This patches improve the guest receive and transmit performance. On the handle_tx side, we poll the sock receive queue at the same time. handle_rx do that in the same way. For more performance report, see patch 4. v4 -> v5: fix some issues v3 -> v4: fix some issues v2 -> v3: This patches are splited from previous big patch:

From: Tonghao Zhang <xiangxia.m.yue at gmail.com> This patches improve the guest receive and transmit performance. On the handle_tx side, we poll the sock receive queue at the same time. handle_rx do that in the same way. For more performance report, see patch 4. v4 -> v5: fix some issues v3 -> v4: fix some issues v2 -> v3: This patches are splited from previous big patch: