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virtio-net: adding all queues in .realize()

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Instead of adding queues for multiqueue during feature set. This patch
did this in .realize(), this will help the following patches that
count the number of virtqueues used in .device_plugged() callback.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Jason Wang 2015-05-29 14:15:24 +08:00 committed by Michael S. Tsirkin
parent cf34f533a1
commit da51a335aa
1 changed files with 17 additions and 42 deletions
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59
hw/net/virtio-net.c
View file

@ -1301,39 +1301,8 @@ static void virtio_net_tx_bh(void *opaque)
static void virtio_net_set_multiqueue(VirtIONet *n, int multiqueue)
{
VirtIODevice *vdev = VIRTIO_DEVICE(n);
int i, max = multiqueue ? n->max_queues : 1;
n->multiqueue = multiqueue;
for (i = 2; i < n->max_queues * 2 + 1; i++) {
virtio_del_queue(vdev, i);
}
for (i = 1; i < max; i++) {
n->vqs[i].rx_vq = virtio_add_queue(vdev, 256, virtio_net_handle_rx);
if (n->vqs[i].tx_timer) {
n->vqs[i].tx_vq =
virtio_add_queue(vdev, 256, virtio_net_handle_tx_timer);
n->vqs[i].tx_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL,
virtio_net_tx_timer,
&n->vqs[i]);
} else {
n->vqs[i].tx_vq =
virtio_add_queue(vdev, 256, virtio_net_handle_tx_bh);
n->vqs[i].tx_bh = qemu_bh_new(virtio_net_tx_bh, &n->vqs[i]);
}
n->vqs[i].tx_waiting = 0;
n->vqs[i].n = n;
}
/* Note: Minux Guests (version 3.2.1) use ctrl vq but don't ack
* VIRTIO_NET_F_CTRL_VQ. Create ctrl vq unconditionally to avoid
* breaking them.
*/
n->ctrl_vq = virtio_add_queue(vdev, 64, virtio_net_handle_ctrl);
virtio_net_set_queues(n);
}
@ -1594,9 +1563,7 @@ static void virtio_net_device_realize(DeviceState *dev, Error **errp)
return;
}
n->vqs = g_malloc0(sizeof(VirtIONetQueue) * n->max_queues);
n->vqs[0].rx_vq = virtio_add_queue(vdev, 256, virtio_net_handle_rx);
n->curr_queues = 1;
n->vqs[0].n = n;
n->tx_timeout = n->net_conf.txtimer;
if (n->net_conf.tx && strcmp(n->net_conf.tx, "timer")
@ -1607,16 +1574,24 @@ static void virtio_net_device_realize(DeviceState *dev, Error **errp)
error_report("Defaulting to \"bh\"");
}
if (n->net_conf.tx && !strcmp(n->net_conf.tx, "timer")) {
n->vqs[0].tx_vq = virtio_add_queue(vdev, 256,
virtio_net_handle_tx_timer);
n->vqs[0].tx_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, virtio_net_tx_timer,
&n->vqs[0]);
} else {
n->vqs[0].tx_vq = virtio_add_queue(vdev, 256,
virtio_net_handle_tx_bh);
n->vqs[0].tx_bh = qemu_bh_new(virtio_net_tx_bh, &n->vqs[0]);
for (i = 0; i < n->max_queues; i++) {
n->vqs[i].rx_vq = virtio_add_queue(vdev, 256, virtio_net_handle_rx);
if (n->net_conf.tx && !strcmp(n->net_conf.tx, "timer")) {
n->vqs[i].tx_vq =
virtio_add_queue(vdev, 256, virtio_net_handle_tx_timer);
n->vqs[i].tx_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL,
virtio_net_tx_timer,
&n->vqs[i]);
} else {
n->vqs[i].tx_vq =
virtio_add_queue(vdev, 256, virtio_net_handle_tx_bh);
n->vqs[i].tx_bh = qemu_bh_new(virtio_net_tx_bh, &n->vqs[i]);
}
n->vqs[i].tx_waiting = 0;
n->vqs[i].n = n;
}
n->ctrl_vq = virtio_add_queue(vdev, 64, virtio_net_handle_ctrl);
qemu_macaddr_default_if_unset(&n->nic_conf.macaddr);
memcpy(&n->mac[0], &n->nic_conf.macaddr, sizeof(n->mac));