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vdpa: Add vhost_vdpa_net_load_mq 

Same way as with the MAC, restore the expected number of queues at
device's start.

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Eugenio Pérez 2022-09-06 17:07:16 +02:00 committed by Jason Wang
parent f73c0c43ac
commit f64c7cda69
1 changed files with 26 additions and 0 deletions
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26
net/vhost-vdpa.c
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@ -400,6 +400,28 @@ static int vhost_vdpa_net_load_mac(VhostVDPAState *s, const VirtIONet *n)
return 0; return 0;
} }
static int vhost_vdpa_net_load_mq(VhostVDPAState *s,
const VirtIONet *n)
{
struct virtio_net_ctrl_mq mq;
uint64_t features = n->parent_obj.guest_features;
ssize_t dev_written;
if (!(features & BIT_ULL(VIRTIO_NET_F_MQ))) {
return 0;
}
mq.virtqueue_pairs = cpu_to_le16(n->curr_queue_pairs);
dev_written = vhost_vdpa_net_load_cmd(s, VIRTIO_NET_CTRL_MQ,
VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET, &mq,
sizeof(mq));
if (unlikely(dev_written < 0)) {
return dev_written;
}
return *s->status != VIRTIO_NET_OK;
}
static int vhost_vdpa_net_load(NetClientState *nc) static int vhost_vdpa_net_load(NetClientState *nc)
{ {
VhostVDPAState *s = DO_UPCAST(VhostVDPAState, nc, nc); VhostVDPAState *s = DO_UPCAST(VhostVDPAState, nc, nc);
@ -418,6 +440,10 @@ static int vhost_vdpa_net_load(NetClientState *nc)
if (unlikely(r < 0)) { if (unlikely(r < 0)) {
return r; return r;
} }
r = vhost_vdpa_net_load_mq(s, n);
if (unlikely(r)) {
return r;
}
return 0; return 0;
} }