Displaying 12 results from an estimated 12 matches for "virtio_net_f_any_header_sg".
2013 Jun 06
4
[PATCH] virtio-net: put virtio net header inline with data
...gt;len) + 1;
+ }
return virtqueue_add_outbuf(sq->vq, sq->sg, num_sg, skb, GFP_ATOMIC);
}
@@ -1554,6 +1576,9 @@ static int virtnet_probe(struct virtio_device *vdev)
if (virtio_has_feature(vdev, VIRTIO_NET_F_MRG_RXBUF))
vi->mergeable_rx_bufs = true;
+ if (virtio_has_feature(vdev, VIRTIO_NET_F_ANY_HEADER_SG))
+ vi->any_header_sg = true;
+
if (virtio_has_feature(vdev, VIRTIO_NET_F_CTRL_VQ))
vi->has_cvq = true;
@@ -1729,6 +1754,7 @@ static unsigned int features[] = {
VIRTIO_NET_F_CTRL_RX, VIRTIO_NET_F_CTRL_VLAN,
VIRTIO_NET_F_GUEST_ANNOUNCE, VIRTIO_NET_F_MQ,
VIRTIO_NET_F_CTRL_MAC_ADDR...
2013 Jun 06
4
[PATCH] virtio-net: put virtio net header inline with data
...gt;len) + 1;
+ }
return virtqueue_add_outbuf(sq->vq, sq->sg, num_sg, skb, GFP_ATOMIC);
}
@@ -1554,6 +1576,9 @@ static int virtnet_probe(struct virtio_device *vdev)
if (virtio_has_feature(vdev, VIRTIO_NET_F_MRG_RXBUF))
vi->mergeable_rx_bufs = true;
+ if (virtio_has_feature(vdev, VIRTIO_NET_F_ANY_HEADER_SG))
+ vi->any_header_sg = true;
+
if (virtio_has_feature(vdev, VIRTIO_NET_F_CTRL_VQ))
vi->has_cvq = true;
@@ -1729,6 +1754,7 @@ static unsigned int features[] = {
VIRTIO_NET_F_CTRL_RX, VIRTIO_NET_F_CTRL_VLAN,
VIRTIO_NET_F_GUEST_ANNOUNCE, VIRTIO_NET_F_MQ,
VIRTIO_NET_F_CTRL_MAC_ADDR...
2013 Jun 07
0
[PATCH] virtio-net: put virtio net header inline with data
..._add_outbuf(sq->vq, sq->sg, num_sg, skb, GFP_ATOMIC);
> }
>
> @@ -1554,6 +1576,9 @@ static int virtnet_probe(struct virtio_device *vdev)
> if (virtio_has_feature(vdev, VIRTIO_NET_F_MRG_RXBUF))
> vi->mergeable_rx_bufs = true;
>
> + if (virtio_has_feature(vdev, VIRTIO_NET_F_ANY_HEADER_SG))
> + vi->any_header_sg = true;
> +
> if (virtio_has_feature(vdev, VIRTIO_NET_F_CTRL_VQ))
> vi->has_cvq = true;
>
> @@ -1729,6 +1754,7 @@ static unsigned int features[] = {
> VIRTIO_NET_F_CTRL_RX, VIRTIO_NET_F_CTRL_VLAN,
> VIRTIO_NET_F_GUEST_ANNOUNCE, VIRTI...
2012 Sep 28
0
[PATCH qemu] virtio-net: add feature bit for any header s/g
.../hw/virtio-net.h
+++ b/hw/virtio-net.h
@@ -44,6 +44,7 @@
#define VIRTIO_NET_F_CTRL_RX 18 /* Control channel RX mode support */
#define VIRTIO_NET_F_CTRL_VLAN 19 /* Control channel VLAN filtering */
#define VIRTIO_NET_F_CTRL_RX_EXTRA 20 /* Extra RX mode control support */
+#define VIRTIO_NET_F_ANY_HEADER_SG 22 /* Host can handle any header s/g */
#define VIRTIO_NET_S_LINK_UP 1 /* Link is up */
@@ -186,5 +187,6 @@ struct virtio_net_ctrl_mac {
DEFINE_PROP_BIT("ctrl_vq", _state, _field, VIRTIO_NET_F_CTRL_VQ, true), \
DEFINE_PROP_BIT("ctrl_rx", _state,...
2012 Sep 28
0
[PATCH qemu] virtio-net: add feature bit for any header s/g
.../hw/virtio-net.h
+++ b/hw/virtio-net.h
@@ -44,6 +44,7 @@
#define VIRTIO_NET_F_CTRL_RX 18 /* Control channel RX mode support */
#define VIRTIO_NET_F_CTRL_VLAN 19 /* Control channel VLAN filtering */
#define VIRTIO_NET_F_CTRL_RX_EXTRA 20 /* Extra RX mode control support */
+#define VIRTIO_NET_F_ANY_HEADER_SG 22 /* Host can handle any header s/g */
#define VIRTIO_NET_S_LINK_UP 1 /* Link is up */
@@ -186,5 +187,6 @@ struct virtio_net_ctrl_mac {
DEFINE_PROP_BIT("ctrl_vq", _state, _field, VIRTIO_NET_F_CTRL_VQ, true), \
DEFINE_PROP_BIT("ctrl_rx", _state,...
2013 Jun 04
4
[PATCH RFC] virtio-pci: new config layout: using memory BAR
...> > (and shift device config accordingly)
>
> By my count, net still has 7 feature bits left, so I don't think the
> feature bits are likely to be a limitation in the next 6 months?
Yes but you wanted a generic transport feature bit
for flexible SG layout.
Are you happy with VIRTIO_NET_F_ANY_HEADER_SG then?
> MMIO is a bigger problem. Linux guests are happy with it: does it break
> the Windows drivers?
>
> Thanks,
> Rusty.
You mean make BAR0 an MMIO BAR?
Yes, it would break current windows guests.
Further, as long as we use same address to notify all queues,
we would also need...
2013 Jun 04
4
[PATCH RFC] virtio-pci: new config layout: using memory BAR
...> > (and shift device config accordingly)
>
> By my count, net still has 7 feature bits left, so I don't think the
> feature bits are likely to be a limitation in the next 6 months?
Yes but you wanted a generic transport feature bit
for flexible SG layout.
Are you happy with VIRTIO_NET_F_ANY_HEADER_SG then?
> MMIO is a bigger problem. Linux guests are happy with it: does it break
> the Windows drivers?
>
> Thanks,
> Rusty.
You mean make BAR0 an MMIO BAR?
Yes, it would break current windows guests.
Further, as long as we use same address to notify all queues,
we would also need...
2012 Sep 28
6
[PATCH 0/3] virtio-net: inline header support
Thinking about Sasha's patches, we can reduce ring usage
for virtio net small packets dramatically if we put
virtio net header inline with the data.
This can be done for free in case guest net stack allocated
extra head room for the packet, and I don't see
why would this have any downsides.
Even though with my recent patches qemu
no longer requires header to be the first s/g element,
we
2012 Sep 28
6
[PATCH 0/3] virtio-net: inline header support
Thinking about Sasha's patches, we can reduce ring usage
for virtio net small packets dramatically if we put
virtio net header inline with the data.
This can be done for free in case guest net stack allocated
extra head room for the packet, and I don't see
why would this have any downsides.
Even though with my recent patches qemu
no longer requires header to be the first s/g element,
we
2013 Jun 05
0
[PATCH RFC] virtio-pci: new config layout: using memory BAR
...mst at redhat.com> writes:
>> By my count, net still has 7 feature bits left, so I don't think the
>> feature bits are likely to be a limitation in the next 6 months?
>
> Yes but you wanted a generic transport feature bit
> for flexible SG layout.
> Are you happy with VIRTIO_NET_F_ANY_HEADER_SG then?
If we need it within 6 months, I'd rather do that: this feature would
then be assumed for 1.0, and reserved. We may do that for other
features, too (the committee will have to review).
>> MMIO is a bigger problem. Linux guests are happy with it: does it break
>> the Window...
2013 Jun 03
3
[PATCH RFC] virtio-pci: new config layout: using memory BAR
On Mon, Jun 03, 2013 at 09:56:15AM +0930, Rusty Russell wrote:
> "Michael S. Tsirkin" <mst at redhat.com> writes:
> > On Thu, May 30, 2013 at 08:53:45AM -0500, Anthony Liguori wrote:
> >> Rusty Russell <rusty at rustcorp.com.au> writes:
> >>
> >> > Anthony Liguori <aliguori at us.ibm.com> writes:
> >> >> Forcing a
2013 Jun 03
3
[PATCH RFC] virtio-pci: new config layout: using memory BAR
On Mon, Jun 03, 2013 at 09:56:15AM +0930, Rusty Russell wrote:
> "Michael S. Tsirkin" <mst at redhat.com> writes:
> > On Thu, May 30, 2013 at 08:53:45AM -0500, Anthony Liguori wrote:
> >> Rusty Russell <rusty at rustcorp.com.au> writes:
> >>
> >> > Anthony Liguori <aliguori at us.ibm.com> writes:
> >> >> Forcing a