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path: root/drivers/net/virtio_net.c
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Diffstat (limited to 'drivers/net/virtio_net.c')
-rw-r--r--drivers/net/virtio_net.c48
1 files changed, 12 insertions, 36 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index d2d2c4a53cf2..21b71148c532 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -68,8 +68,6 @@ static const unsigned long guest_offloads[] = {
(1ULL << VIRTIO_NET_F_GUEST_ECN) | \
(1ULL << VIRTIO_NET_F_GUEST_UFO))
-#define GUEST_OFFLOAD_CSUM_MASK (1ULL << VIRTIO_NET_F_GUEST_CSUM)
-
struct virtnet_stat_desc {
char desc[ETH_GSTRING_LEN];
size_t offset;
@@ -2524,48 +2522,29 @@ static int virtnet_get_phys_port_name(struct net_device *dev, char *buf,
return 0;
}
-static netdev_features_t virtnet_fix_features(struct net_device *netdev,
- netdev_features_t features)
-{
- /* If Rx checksum is disabled, LRO should also be disabled. */
- if (!(features & NETIF_F_RXCSUM))
- features &= ~NETIF_F_LRO;
-
- return features;
-}
-
static int virtnet_set_features(struct net_device *dev,
netdev_features_t features)
{
struct virtnet_info *vi = netdev_priv(dev);
- u64 offloads = vi->guest_offloads;
+ u64 offloads;
int err;
- /* Don't allow configuration while XDP is active. */
- if (vi->xdp_queue_pairs)
- return -EBUSY;
-
if ((dev->features ^ features) & NETIF_F_LRO) {
+ if (vi->xdp_queue_pairs)
+ return -EBUSY;
+
if (features & NETIF_F_LRO)
- offloads |= GUEST_OFFLOAD_LRO_MASK &
- vi->guest_offloads_capable;
+ offloads = vi->guest_offloads_capable;
else
- offloads &= ~GUEST_OFFLOAD_LRO_MASK;
- }
+ offloads = vi->guest_offloads_capable &
+ ~GUEST_OFFLOAD_LRO_MASK;
- if ((dev->features ^ features) & NETIF_F_RXCSUM) {
- if (features & NETIF_F_RXCSUM)
- offloads |= GUEST_OFFLOAD_CSUM_MASK &
- vi->guest_offloads_capable;
- else
- offloads &= ~GUEST_OFFLOAD_CSUM_MASK;
+ err = virtnet_set_guest_offloads(vi, offloads);
+ if (err)
+ return err;
+ vi->guest_offloads = offloads;
}
- err = virtnet_set_guest_offloads(vi, offloads);
- if (err)
- return err;
-
- vi->guest_offloads = offloads;
return 0;
}
@@ -2584,7 +2563,6 @@ static const struct net_device_ops virtnet_netdev = {
.ndo_features_check = passthru_features_check,
.ndo_get_phys_port_name = virtnet_get_phys_port_name,
.ndo_set_features = virtnet_set_features,
- .ndo_fix_features = virtnet_fix_features,
};
static void virtnet_config_changed_work(struct work_struct *work)
@@ -3035,10 +3013,8 @@ static int virtnet_probe(struct virtio_device *vdev)
if (virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_TSO4) ||
virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_TSO6))
dev->features |= NETIF_F_LRO;
- if (virtio_has_feature(vdev, VIRTIO_NET_F_CTRL_GUEST_OFFLOADS)) {
- dev->hw_features |= NETIF_F_RXCSUM;
+ if (virtio_has_feature(vdev, VIRTIO_NET_F_CTRL_GUEST_OFFLOADS))
dev->hw_features |= NETIF_F_LRO;
- }
dev->vlan_features = dev->features;