virtio_net: enable per queue interrupt coalesce feature

Enable per queue interrupt coalesce feature bit in driver and validate its
dependency with control queue.

Signed-off-by: Gavin Li <gavinl@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Heng Qi <hengqi@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20230731070656.96411-4-gavinl@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 77805796fddd2032533f304aed3f30e5b0208a3e..c615bbf24c0dfd4048522bcf39f53e48b569eb0b 100644 (file)
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -4088,6 +4088,8 @@ static bool virtnet_validate_features(struct virtio_device *vdev)
             VIRTNET_FAIL_ON(vdev, VIRTIO_NET_F_HASH_REPORT,
                             "VIRTIO_NET_F_CTRL_VQ") ||
             VIRTNET_FAIL_ON(vdev, VIRTIO_NET_F_NOTF_COAL,
+                            "VIRTIO_NET_F_CTRL_VQ") ||
+            VIRTNET_FAIL_ON(vdev, VIRTIO_NET_F_VQ_NOTF_COAL,
                             "VIRTIO_NET_F_CTRL_VQ"))) {
                return false;
        }
@@ -4512,6 +4514,7 @@ static struct virtio_device_id id_table[] = {
        VIRTIO_NET_F_MTU, VIRTIO_NET_F_CTRL_GUEST_OFFLOADS, \
        VIRTIO_NET_F_SPEED_DUPLEX, VIRTIO_NET_F_STANDBY, \
        VIRTIO_NET_F_RSS, VIRTIO_NET_F_HASH_REPORT, VIRTIO_NET_F_NOTF_COAL, \
+       VIRTIO_NET_F_VQ_NOTF_COAL, \
        VIRTIO_NET_F_GUEST_HDRLEN
 
 static unsigned int features[] = {