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On Thu, Dec 11, 2014 at 02:25:18PM +0100, Cornelia Huck wrote: > diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c > index ebbea60..7ee2bd6 100644 > --- a/hw/net/virtio-net.c > +++ b/hw/net/virtio-net.c > @@ -373,15 +373,21 @@ static int peer_has_ufo(VirtIONet *n) > return n->has_ufo; > } > > -static void virtio_net_set_mrg_rx_bufs(VirtIONet *n, int mergeable_rx_bufs) > +static void virtio_net_set_mrg...

On Thu, Dec 11, 2014 at 02:25:18PM +0100, Cornelia Huck wrote: > diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c > index ebbea60..7ee2bd6 100644 > --- a/hw/net/virtio-net.c > +++ b/hw/net/virtio-net.c > @@ -373,15 +373,21 @@ static int peer_has_ufo(VirtIONet *n) > return n->has_ufo; > } > > -static void virtio_net_set_mrg_rx_bufs(VirtIONet *n, int mergeable_rx_bufs) > +static void virtio_net_set_mrg...

...every device is ready for virtio 1.0, we can move setting this feature bit out of the individual devices. Signed-off-by: Cornelia Huck <cornelia.huck at de.ibm.com> --- hw/net/virtio-net.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index 7ee2bd6..b5dd356 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -473,6 +473,7 @@ static uint64_t virtio_net_get_features(VirtIODevice *vdev, uint64_t features) } if (!get_vhost_net(nc->peer)) { + virtio_add_feature(&features, VIRTIO_F_VERSION_1); return fea...

...hat.com with TUNSETVNETLE/TUNGETVNETLE ioctls to support it. But you still need to call them in qemu, and disable virtio-1.0 if not there. > --- > hw/net/virtio-net.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c > index 7ee2bd6..b5dd356 100644 > --- a/hw/net/virtio-net.c > +++ b/hw/net/virtio-net.c > @@ -473,6 +473,7 @@ static uint64_t virtio_net_get_features(VirtIODevice *vdev, uint64_t features) > } > > if (!get_vhost_net(nc->peer)) { > + virtio_add_feature(&features, VIRTI...

...er, even if mergeable rx buffers have not been negotiated. Signed-off-by: Cornelia Huck <cornelia.huck at de.ibm.com> --- hw/net/virtio-net.c | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-) diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index ebbea60..7ee2bd6 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -373,15 +373,21 @@ static int peer_has_ufo(VirtIONet *n) return n->has_ufo; } -static void virtio_net_set_mrg_rx_bufs(VirtIONet *n, int mergeable_rx_bufs) +static void virtio_net_set_mrg_rx_bufs(VirtIONet *n, int mergeable_rx_...

...every device is ready for virtio 1.0, we can move setting this feature bit out of the individual devices. Signed-off-by: Cornelia Huck <cornelia.huck at de.ibm.com> --- hw/net/virtio-net.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index 7ee2bd6..b5dd356 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -473,6 +473,7 @@ static uint64_t virtio_net_get_features(VirtIODevice *vdev, uint64_t features) } if (!get_vhost_net(nc->peer)) { + virtio_add_feature(&features, VIRTIO_F_VERSION_1); return fea...

...hat.com with TUNSETVNETLE/TUNGETVNETLE ioctls to support it. But you still need to call them in qemu, and disable virtio-1.0 if not there. > --- > hw/net/virtio-net.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c > index 7ee2bd6..b5dd356 100644 > --- a/hw/net/virtio-net.c > +++ b/hw/net/virtio-net.c > @@ -473,6 +473,7 @@ static uint64_t virtio_net_get_features(VirtIODevice *vdev, uint64_t features) > } > > if (!get_vhost_net(nc->peer)) { > + virtio_add_feature(&features, VIRTI...

...er, even if mergeable rx buffers have not been negotiated. Signed-off-by: Cornelia Huck <cornelia.huck at de.ibm.com> --- hw/net/virtio-net.c | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-) diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index ebbea60..7ee2bd6 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -373,15 +373,21 @@ static int peer_has_ufo(VirtIONet *n) return n->has_ufo; } -static void virtio_net_set_mrg_rx_bufs(VirtIONet *n, int mergeable_rx_bufs) +static void virtio_net_set_mrg_rx_bufs(VirtIONet *n, int mergeable_rx_...

And yet another iteration of virtio-1 support in qemu, tested with the latest virtio kernel patches. Find it at git://github.com/cohuck/qemu virtio-1 Changes from v5: - fixed stupid bug in "virtio: support more feature bits": we need to define a proper prop backend for 64 bit wide handling... - don't negotiate revision 1 unless VERSION_1 is offered - use 64 bit wide features

And yet another iteration of virtio-1 support in qemu, tested with the latest virtio kernel patches. Find it at git://github.com/cohuck/qemu virtio-1 Changes from v5: - fixed stupid bug in "virtio: support more feature bits": we need to define a proper prop backend for 64 bit wide handling... - don't negotiate revision 1 unless VERSION_1 is offered - use 64 bit wide features

Another iteration of virtio-1 patches for qemu, as always available on git://github.com/cohuck/qemu virtio-1 This one seems to work together with the current vhost-next patches (well, I can ping :) Changes from v4: - add helpers for feature bit manipulation and checking - use 64 bit feature bits instead of 32 bit arrays - infrastructure to allow devices to offer different sets of feature bits

Another iteration of virtio-1 patches for qemu, as always available on git://github.com/cohuck/qemu virtio-1 This one seems to work together with the current vhost-next patches (well, I can ping :) Changes from v4: - add helpers for feature bit manipulation and checking - use 64 bit feature bits instead of 32 bit arrays - infrastructure to allow devices to offer different sets of feature bits