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vdpa: add vhost_vdpa_net_valid_svq_features

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It will be reused at vdpa device start so let's extract in its own
function.

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20221215113144.322011-6-eperezma@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Eugenio Pérez 2022-12-15 12:31:37 +01:00 committed by Michael S. Tsirkin
parent 5fde952bbd
commit 36e4647247
1 changed files with 17 additions and 9 deletions
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26
net/vhost-vdpa.c
View file

@ -107,6 +107,22 @@ VHostNetState *vhost_vdpa_get_vhost_net(NetClientState *nc)
return s->vhost_net;
}
static bool vhost_vdpa_net_valid_svq_features(uint64_t features, Error **errp)
{
uint64_t invalid_dev_features =
features & ~vdpa_svq_device_features &
/* Transport are all accepted at this point */
~MAKE_64BIT_MASK(VIRTIO_TRANSPORT_F_START,
VIRTIO_TRANSPORT_F_END - VIRTIO_TRANSPORT_F_START);
if (invalid_dev_features) {
error_setg(errp, "vdpa svq does not work with features 0x%" PRIx64,
invalid_dev_features);
}
return !invalid_dev_features;
}
static int vhost_vdpa_net_check_device_id(struct vhost_net *net)
{
uint32_t device_id;
@ -676,15 +692,7 @@ int net_init_vhost_vdpa(const Netdev *netdev, const char *name,
if (opts->x_svq) {
struct vhost_vdpa_iova_range iova_range;
uint64_t invalid_dev_features =
features & ~vdpa_svq_device_features &
/* Transport are all accepted at this point */
~MAKE_64BIT_MASK(VIRTIO_TRANSPORT_F_START,
VIRTIO_TRANSPORT_F_END - VIRTIO_TRANSPORT_F_START);
if (invalid_dev_features) {
error_setg(errp, "vdpa svq does not work with features 0x%" PRIx64,
invalid_dev_features);
if (!vhost_vdpa_net_valid_svq_features(features, errp)) {
goto err_svq;
}